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Re:What went wrong with the Texas power grid? by ip26 on Tuesday February 16, 2021 @07:37PM (#26161015)
Gas furnaces need power for the circuitry & blower.

My experience with fireplaces is that the house winds up net-colder, but you can warm yourself with radiant heat while it burns. Freestanding wood stoves on the other hand are very capable of warming a large space.

Re:What went wrong with the Texas power grid? by bdamm on Tuesday February 16, 2021 @07:42PM (#26161048)
A tight wood stove in the hands of an experienced user is a remarkable thing. The amount of heat that can be extracted from a large oak log is nothing short of remarkable.

Sadly, most wood stoves are not tight, nor are most users experienced.

Re:What went wrong with the Texas power grid? by mikeytown2 on Tuesday February 16, 2021 @10:22PM (#26162257)
Best fireplace in terms of efficiency is a rocket mass heater. It burns the wood gas in a secondary burn chamber and then routes the exhaust through a lot of thermal mass. One 2 hour fire a day will usually heat 2000 sq feet of house. 3m video explains the concept; longer videos will better explain it https://youtu.be/fwCz8Ris79g
Re:What went wrong with the Texas power grid? by ip26 on Tuesday February 16, 2021 @07:47PM (#26161096)
This is 50% of the reason why pellet stoves were created, with the other 50% being you can burn scraps instead of large oak logs that could be used for furniture etc.
Re:What went wrong with the Texas power grid? by ericbarrett on Tuesday February 16, 2021 @08:07PM (#26161273)
Pellet stoves sound nice in concept but my experience with them (n=2) has not been good. The hoppers break and jam, the fans die, and they’re generally just a pain in the rear. Usually happens right when you need them most, too.
Re:What went wrong with the Texas power grid? by jandrese on Tuesday February 16, 2021 @08:21PM (#26161402)
I only have n=1 experience here, but I've been using a pellet stove for years, burning a ton (50 bags) of pellets each year. I buy quality pellets which avoids having clinkers and keep them dry in the garage.

It does require yearly maintenance to grease the motor and I had to undergo some repairs when we bought it (used, it came with the house) because the previous owners did some really dodgy stuff like using a completely wrong sized fuse and taping it in with duct tape, mangling the fuse holder, but it has been reliable for over a decade now.

Re:What went wrong with the Texas power grid? by tharkun__ on Tuesday February 16, 2021 @09:57PM (#26162123)
Cold climate here (Quebec) and we heat with electricity usually. Many people have an electric furnace (forced air) or even baseboard (what I have for example). We also have a heat pump (heats the upstairs very well until about -15C and provides awesome AC for the entire house in summer).

For Power outages and also coz its just awesomely warm: propane fireplace. All the benefits of a wood fireplace with none of the downsides.

What this means is that we don't worry about "oh how about we all go ice skating" just turn the fireplace off without worrying about a fire. No indoor air quality issues. Electricity is out? Sure no fan but who cares. Still warm (and some have battery backup fans). Have to start it up without electricity? No problem, pilot lights w/ piezo starter. Propane delivery isn't that different from having to stockpile the firewood.

Re:What went wrong with the Texas power grid? by yellowait44 on Tuesday February 16, 2021 @10:18PM (#26162242)
LPG or Propane is awesome down until -42 celsius. Then it’s basically useless as it won’t vaporize. Live in Quebec too and my backup is a dual fuel generator. Propane and then regular fuel if it’s too cold or I’m out of propane. Never too careful!
Re:What went wrong with the Texas power grid? by tharkun__ on Tuesday February 16, 2021 @10:47PM (#26162403)
You do have us on the regular fuel backup :) don't have that but we also don't have a backup generator in general. I wanted to last time we had a >12 hour outage but couldn't get the expense approved by the "finance minister" (i.e. the SO). When the electricity goes out for more than an hour or so the neighborhood is suddenly very loud though coz several next door neighbors go and bring out their generators so I'm not too worried about our survival and there's always the firewood pile in the backyard.
Re:What went wrong with the Texas power grid? by Dylan16807 on Wednesday February 17, 2021 @02:35AM (#26163722)
It doesn't have to be useless. It could have a way to keep the tank warm.

Edit: Downvote? I really want to know why you disagree, please respond! What am I missing?

Re:What went wrong with the Texas power grid? by KMag on Wednesday February 17, 2021 @05:38AM (#26164926)
I haven't downvoted you, but it's perhaps because the LPG tank is usually outside with a rather large surface area, so if -40 degree days are rare, insulating the tanks and providing a heater might not be very cost-effective vs. having multiple fuel jets in your burner for multiple viscosity fuels.

Also, either the "way to keep the tank warm" would probably be an electric heater (which would fail in these corner cases) or else a small burner... next to your tank of highly flammable gas with lots of no-smoking signs around.

Though, I would guess in colder climates, if you really wanted to use LPG, you could put an electric fuel pump in your tank (so it doesn't rely on vapour pressure to feed) and have a burner that pre-warms the fuel and includes a small electric heater for starting.

Re:What went wrong with the Texas power grid? by Dylan16807 on Wednesday February 17, 2021 @06:27AM (#26165220)
> it's perhaps because the LPG tank is usually outside with a rather large surface area, so if -40 degree days are rare, insulating the tanks and providing a heater might not be very cost-effective vs. having multiple fuel jets in your burner for multiple viscosity fuels.

It's more or less a one-time cost and you might want the simplicity. Tradeoffs rather than it being inevitable.

And multiple fuel jets aren't enough. If you can't depend on the propane, then you need a lot of backup fuel.

> small burner... next to your tank of highly flammable gas with lots of no-smoking signs around.

You have fire that's not very far anyway. It's not hard for an expert to design something that's safe, since you don't need all that much heat.

> Though, I would guess in colder climates, if you really wanted to use LPG, you could put an electric fuel pump in your tank (so it doesn't rely on vapour pressure to feed) and have a burner that pre-warms the fuel and includes a small electric heater for starting.

If you prefer keeping the tank design the same, that sounds fine. A tiny pump would take barely any power, so a cheap solid-state generator attached to the burner could run it and charge your phone too. You don't even need a battery to get things going; a 1 pound tank could be warmed by hand if everything else goes wrong.

Re:What went wrong with the Texas power grid? by KMag on Wednesday February 17, 2021 @05:30AM (#26164867)
Is "regular fuel" fuel oil? At what point does the fuel oil sold in your area start to gel?
Re:What went wrong with the Texas power grid? by yellowait44 on Wednesday February 17, 2021 @07:20PM (#26173767)
The range is pretty broad -40 to -200, but in colder region they put additives that prevents gasoline from freezing so it can save you.
Re:What went wrong with the Texas power grid? by KMag on Wednesday February 17, 2021 @10:08PM (#26175077)
Gasoline and fuel oil are different things.
Re:What went wrong with the Texas power grid? by tharkun__ on Thursday February 18, 2021 @07:16PM (#26187741)
They also change the composition of at least Diesel at the pump. Not sure on fuel oil which is essentially the same as Diesel at the pump, save for possibly things like that (definitely the color)

https://en.m.wikipedia.org/wiki/Winter_diesel_fuel

Re:What went wrong with the Texas power grid? by KMag on Friday February 19, 2021 @12:29AM (#26190092)
Yes, most of my relatives on my mom's side are farmers in the upper Midwest. They have separate (gravity fed) tanks on their farms for #1 and #2 diesel, and the tank they use for filling the tractors depends on the season.

(Farmers buy diesel in bulk and don't pay road tax on it. It's illegal to put the untaxed diesel into a pickup that ever leaves the farm.)

Re:What went wrong with the Texas power grid? by throwanem on Tuesday February 16, 2021 @09:08PM (#26161741)
What's a good place to learn the art, do you know? I'm not in Texas, but I have two woodstoves now, and my one experiment with them thus far has taught me only that I have a lot to learn.
Re:What went wrong with the Texas power grid? by anonfornoreason on Wednesday February 17, 2021 @12:39AM (#26163110)
Other poster covered it well, but one thing to add. There are the kinds of wood burning stove. Old simple, pre EPA mandated high efficiency stove, efficient stoves with a catalyst to provide the clean burn, and efficient stoves that use secondary air injection to provide a clean burn. The new efficient stoves are a bit more forgiving for throttling them down for long burns without producing too much creosote they can cause chimney fires.

I just replaced the old stove in my house with a new catalyst model and I burn 30% less wood while providing more steady even heat. I am heating 4000 sqft 2 story with only wood heat, one load every 12 hours, house between 80 and 64 degrees depending on location.

Wood heat is great!

Re:What went wrong with the Texas power grid? by KMag on Wednesday February 17, 2021 @05:55AM (#26165013)
Are you aware of any high-efficiency wood burners that don't require electrical power for the secondary air injection? If they do all require electrical power for secondary air injection, if power is lost, do they quickly foul the burners with soot, or do they just gracefully degrade to running at a lower efficiency?
Re:What went wrong with the Texas power grid? by nkurz on Wednesday February 17, 2021 @08:50AM (#26166222)
The secondary air combustion for wood burning stoves usually doesn't require electricity. At least, we shopped for an EPA 2020 compliant replacement wood stove a couple years ago, and I don't think I came across that needed electricity for combustion. Pellet burning stoves often do, and there are often add-on kits for wood stoves to provide greater air circulation for the room, but the primary and secondary combustion use the natural "draft" from the chimney. I guess it's possible that even higher efficiency would be possible for bulk wood with a forced air design, but I don't think they are common. We ended up with a Progress Hybrid Soapstone, and have been happy with it.
Re:What went wrong with the Texas power grid? by anonfornoreason on Wednesday February 17, 2021 @03:59PM (#26171692)
Other reply covered it nicely. I am not aware of any conventional high efficiency wood stove that requires electricity to run. I do have blowers on mine to circulate air over the convection deck, which also reduces clearance requirements to the rear of the stove.

I opted for a blaze king catalyst stove. It’s probably the nicest stove utilitarian stove you can buy if you want to heat a large space and want to control temp outputs. Downside is cat replacements every 5 or so years, but that’s not a big deal and worth the benefits.

Lots of good options out there!

Re:What went wrong with the Texas power grid? by gorgoiler on Tuesday February 16, 2021 @11:32PM (#26162717)
Wood stoves are charcoal breeder reactors powered by their own vaporized wood gas. The re-radiated heat from the ironwork is what gives them their extreme warmth. They are like many other fuel burners — stage one vaporizes the fuel and stage two burns the vapor — it’s just that both stages are in the same iron firebox.

When you start a fire you want to quickly get the stove up to temperature. Use small split logs and kindling sticks along with some kind of “candle” that burns long enough to get the flames going. Commercial fire lighters (kerosine wax bricks) or even just a bit of kitchen towel with a tablespoon of vegetable oil will do.

The kindling and your first log will burn hot and bright with an attractive yellow flame — like a campfire. At the end of this first burn you will build up a layer of red hot wood embers in the base of the firebox and the ironwork will be about half way to temperature.

The next stage and each stage after that is to put on a much smaller load — often I will just use a single large log — and leave the air intake or door ajar, temporarily. The hot embers will rapidly get the new log hot and the whole thing will instantly go from glowing red to an inferno in under a minute.

At that point you have achieved a self sustaining reactor. You can leave it running full throttle if you want the pretty yellow flames. It will only last 20 minutes though and all the energy will blast up the chimney.

Much better, and indeed the whole reason for having a wood stove over an open grate, is to now shut off almost all of the airflow to the firebox. Low airflow means the combustion goes right down — you may not even see any flames if you go super low — but it also means the stove isn’t being constantly cooled by a high volume of airflow.

If you balance it just right then the flame front of burning wood gas will sit above the logs and permeate the whole chamber. It looks like a cross between Aurora borealis and a Backdraft (1991) slo-mo sequence — a deep red wraith that flaps around slowly, completely unlike the sooty yellow flames you began with. You get a real feeling for how it’s the gas not the wood that’s burning. (Having a stove with a glass viewing window really opened my eyes to their operation.)

A single 10” log — quarter split from a 20” diameter ash tree and air dried for 18 months to <20% moisture content — will now produce 10kW for an hour or more and stay burning for eight. The fire will “keep” overnight and in the morning you can put on a new log, fire it up with the door ajar, and be back at full capacity in minutes.

What’s interesting is that if you run the stove in pretty mode — like a cartoon open fireplace with crackling and burning and yellow flames with the vents or even the whole front door open — you’ll notice that parts of the stove might not even get hot. The iron air intake grill on mine will remain at room temperature because although the flames are vigorous, the airflow is so fast it keeps the stove body cool.

Conversely, once the stove has been running for an hour in slow burn mode, the entire body is practically glowing and requires thick gloves to handle. It is wonderful.

Re:What went wrong with the Texas power grid? by URSpider94 on Wednesday February 17, 2021 @02:46AM (#26163777)
Exactly this. Wood stoves operated in this manner are extremely efficient, and generate particulate emissions comparable to an oil-fired furnace, maybe 100x less than an open-hearth fireplace.
Re:What went wrong with the Texas power grid? by malandrew on Wednesday February 17, 2021 @12:37AM (#26163099)
> It looks like a cross between Aurora borealis and a Backdraft (1991) slo-mo sequence — a deep red wraith that flaps around slowly, completely unlike the sooty yellow flames you began with. You get a real feeling for how it’s the gas not the wood that’s burning. (Having a stove with a glass viewing window really opened my eyes to their operation.)

Would love a video if you can find one to see exactly what you're talking about.

Re:What went wrong with the Texas power grid? by bdamm on Thursday February 18, 2021 @12:16PM (#26182560)
After a quick search on YouTube I was somewhat unsatisfied; the few videos I looked at showed the effect only partially. People do sometimes like to bias the burn towards the yellow flame, either for entertainment or to keep the temperature of the stove down. Also it's hard to capture. My own attempts to photograph the effect haven't been successful due to the movement of the flame and the gentle low red glow that it gives off.
Re:What went wrong with the Texas power grid? by Izkata on Wednesday February 17, 2021 @02:24PM (#26170365)
I've never seen it before (so I'm not 100% this is the same thing), but did find a picture that I think is similar to what they're describing - the red glow in the top window of the picture here: https://commonsensehome.com/masonry-heaters/
Re:What went wrong with the Texas power grid? by bdamm on Tuesday February 16, 2021 @10:31PM (#26162313)
The trick is to start it up hot and then reduce down the airflow to near zero. The knowledge was passed down in the tribe, so I don't know where one learns the art.
Re:What went wrong with the Texas power grid? by baq on Wednesday February 17, 2021 @05:34AM (#26164889)
my fireplace has this in its manual.
Re:What went wrong with the Texas power grid? by jcims on Tuesday February 16, 2021 @07:53PM (#26161153)
Especially if you use an outside air kit for the firebox.

For the uninitiated, take a look at the forums at hearth.com.

Re:What went wrong with the Texas power grid? by voicedYoda on Tuesday February 16, 2021 @08:07PM (#26161271)
On reddit i follow /r/woodstoving. My inspiration for getting it right
Re:What went wrong with the Texas power grid? by sjg007 on Tuesday February 16, 2021 @08:53PM (#26161638)
It's almost impossible to get a permit for a wood or pellet stove these days.
Re:What went wrong with the Texas power grid? by ghaff on Wednesday February 17, 2021 @09:29AM (#26166613)
Depends where you are. Certainly not true as a general rule.
Re:What went wrong with the Texas power grid? by abathur on Tuesday February 16, 2021 @09:30PM (#26161926)
Surprising amount of erotic energy in this comment. :)
Re:What went wrong with the Texas power grid? by dwohnitmok on Tuesday February 16, 2021 @07:41PM (#26161046)
> My experience with fireplaces is that the house winds up net-colder

Why is that?

EDIT: Oh are you saying that the rate of heating provided by the fire is less than the overall rate of heat leaving the entire house?

Re:What went wrong with the Texas power grid? by ip26 on Tuesday February 16, 2021 @07:56PM (#26161178)
Right, if you think about it almost all of the heat from the fire goes right up the chimney. The brick of the firebox & chimney are generally built outside the building envelope for safety reasons, so any heat in the brick doesn't warm the house. The only heat that actually makes its way into the house is the radiant heat cast from the fire itself, which is small.

The smoke is poison, and unlike a furnace, gas fireplace, firebox, or wood stove, there is no heat exchanger, so you can't capture any of the heat out of the flue gasses.

It's counter-intuitive, I know. But this is why everybody congregated around the hearth in the days of fireplaces.

Re:What went wrong with the Texas power grid? by forgotmypw17 on Tuesday February 16, 2021 @08:22PM (#26161407)
This is why russian-style stoves have a whole labyrinth for the air to blow through, warming up the large brick structure. It can hold heat for a while even after it's done burning.
Re:What went wrong with the Texas power grid? by nickt on Tuesday February 16, 2021 @08:32PM (#26161490)
A bit OT, but I would have no idea about Russian-style stoves until I saw this video a few days ago. Amazing.

https://youtu.be/r_TO30jzyUA

Re:What went wrong with the Texas power grid? by treis on Tuesday February 16, 2021 @10:03PM (#26162148)
Even worse, all that exhaust gas that goes up the chimney has to be replaced. And it's replaced by cold air from the outside coming through all the little books and crannies of your house.
Re:What went wrong with the Texas power grid? by _carbyau_ on Tuesday February 16, 2021 @10:51PM (#26162436)
I have seen slow combustion fireplaces still drawing in air from the room in front of them, leading to your exact comment.

Seems like it could be fixed with a simple design change.

But I am not a fireplace lawyer so I won't profess to know.

Re:What went wrong with the Texas power grid? by treis on Wednesday February 17, 2021 @10:09AM (#26167122)
There are many different designs that have tried to solve the issue. Both from capturing the heat lost up the chimney and supplying combustion air from outside. They all come with downsides and ultimately forced air heating won out.
Re:What went wrong with the Texas power grid? by User23 on Tuesday February 16, 2021 @09:19PM (#26161829)
The 180 year old house I grew up in has a central brick chimney for this reason. When you put the fire out before going to bed you have a column of brick radiating throughout the night. It’s still pretty chilly in the morning but it works quite well.
Re:What went wrong with the Texas power grid? by ip26 on Tuesday February 16, 2021 @09:23PM (#26161871)
Right, but it turns out the mortar fails more often than you would like and you'd get smoke & carbon monoxide leaking into houses from that central chimney, which is why that went away (or so I've heard)
Re:What went wrong with the Texas power grid? by tharkun__ on Tuesday February 16, 2021 @10:04PM (#26162154)
https://www.offgridquest.com/fload/homes-dwellings/heating-c...

Almost without comment. All I will say is that we have some friends in Germany living in the 'countryside' (as much as that's still a thing in densely populated Germany) that heat their main living area with one of these (way less elaborate design lol). My grandma had one of these sitting in the wall between kitchen (right next to the eating area) and the living room.

Re:What went wrong with the Texas power grid? by cycomanic on Wednesday February 17, 2021 @12:49AM (#26163165)
My parents have one of these in their holiday house by the sea (essentially an old farmhands dwelling). I can confirm that it heats the house up to blistering temperature even in the coldest winter if one wants. Other friends use a more modern design in their house which essentially heats up the whole house (I don't think they have any other heating except water heating)
Re:What went wrong with the Texas power grid? by gowld on Tuesday February 16, 2021 @08:08PM (#26161285)
Why don't we run radiator water pipes across the chimney, to bring that heat back to the house?
Re:What went wrong with the Texas power grid? by ag56 on Tuesday February 16, 2021 @09:01PM (#26161696)
The house I grew up in in Scotland did exactly this.

We had fireplace powered central heating -— radiators throughout the house linked to pipes behind the firebox. In the morning I’d wake up to ice on the inside of the windows, and by my teenage years it was my job to head downstairs and light the coal fire first thing in the morning. It worked well once the fire was up and running.

This was in the ‘90s btw, I’m not _that_ old.

Re:What went wrong with the Texas power grid? by mbreese on Tuesday February 16, 2021 @08:28PM (#26161459)
This is a very old problem and there are solutions, like the Franklin stove [1]. However, we don’t really use fireplaces as a primary source of heat anymore. Their use is really more decorative. If they were really intended for heat generation, so one of the other posts mentioned, we would use a completely different design.

[1] https://en.m.wikipedia.org/wiki/Franklin_stove

Re:What went wrong with the Texas power grid? by maxerickson on Tuesday February 16, 2021 @08:44PM (#26161572)
Wood boilers are common enough. Pipes and radiators won't do all that much good if you aren't moving the water, and at that point it makes sense to optimize the whole thing for heating water with the minimum required fuel.
Re:What went wrong with the Texas power grid? by Jtsummers on Tuesday February 16, 2021 @08:27PM (#26161448)
There are designs that do this or things like it. In the US, though, it seems fireplaces are mostly an aesthetic feature and not a practical one.
Re:What went wrong with the Texas power grid? by mikestew on Tuesday February 16, 2021 @08:38PM (#26161542)
My father did that a long time ago in a house that had baseboard heat. Made a fire grate out of plumbing pipe, ran the baseboard water through that. It worked, when it did. It would also somehow get air in the lines and start banging from time-to-time. I was a kid, so I don't know if the monetary savings offset the pain in the arse, or not.
Re:What went wrong with the Texas power grid? by tharkun__ on Tuesday February 16, 2021 @10:17PM (#26162229)
In parts of Europe (definitely Germany) heating with water based radiators throughout the house is normal. And that goes from individual houses to big apartment complexes (I lived in a 52 unit one with a central furnace). It's totally normal to let the air out of your radiator from time to time. And they (or you in the individual house case) fill up the water in the 'closed' system from time to time.

Different places, different 'customs' i.e. systems we are used to. All have their pros and cons and sometimes it's just that we don't know that different systems exist.

Re:What went wrong with the Texas power grid? by cycomanic on Wednesday February 17, 2021 @01:04AM (#26163245)
Radiative heat actually makes you feel significantly warmer, so you can set your heating to a lower temperature and still feel the same warmth compared to airflow heating. This is the reason why floor heating is very efficient, because you have a large heat mass with radiative heat that sits at your feet (which typically get cold first). So it provides the same comfortlevel at significantly lower temperature.
Re:What went wrong with the Texas power grid? by saberdancer on Wednesday February 17, 2021 @05:04AM (#26164720)
Which is why it is better to make a quick but strong draft in your home than keep window constantly slightly open. With a quick exchange of air, your walls remain warm and continue to radiate heat. Having a window constantly slightly open means air exchange is slow but constant and the area of the wall around the window cools down significantly.
Re:What went wrong with the Texas power grid? by Bayart on Thursday February 18, 2021 @02:30AM (#26177018)
Same in France. There's variations in how the water's heated (gas, fuel oil, electricity) but it's the default form of heating everywhere.
Re:What went wrong with the Texas power grid? by throwaway0a5e on Tuesday February 16, 2021 @09:21PM (#26161851)
It takes very, very specific conditions (you'd have to go out of your way to minimize radiant heat transfer) for a fireplace to put less heat into a room than it removes with airflow.

Back in the day (i.e. 1700s) everyone heated with fireplaces. And many of them (e.g. 2nd floor ones) weren't that big.

Re:What went wrong with the Texas power grid? by ihaveajob on Tuesday February 16, 2021 @09:47PM (#26162065)
The problem, in my experience (grew up spending significant time in a 3 story country house made of stone with only one fireplace for heating), is that it gets warm close to the fire and whatever is touching the chimney, but the rest of the house gets colder because of the cold air drawn in by the fire. So very likely a net gain, but depending on where you sleep, it could get interesting at night.
Re:What went wrong with the Texas power grid? by dwohnitmok on Tuesday February 16, 2021 @08:00PM (#26161216)
Ah the only heat exchange being radiant makes total sense. Thanks!
Re:What went wrong with the Texas power grid? by JonathonW on Tuesday February 16, 2021 @07:54PM (#26161154)
Fireplaces typically draw air from the house to sustain the fire, then up the chimney or out a vent. That creates negative pressure, which draws cold, unconditioned air from outside into the house from wherever air can leak in.

How this works out in terms of net heat gained/lost will depend on the fireplace design, but, from what I hear, it's not uncommon for this to be a net-loss type of situation.

Re:What went wrong with the Texas power grid? by AuthorizedCust on Tuesday February 16, 2021 @08:25PM (#26161435)
Not if they are in the attic. Also, my house has a subfloor. When the furnace and water heater were inside the part of the house you live in, they both had vents on the floor, so air used for combustion came from outside.
Re:What went wrong with the Texas power grid? by jcims on Tuesday February 16, 2021 @07:51PM (#26161131)
No, the issue is that the draw of the heated air up through the flue creates a negative pressure inside the home, which gets made up through all the little nooks and crannies around the house.

As a result, the room where the fireplace is will be warmer but the rest the house is typically colder.

Re:What went wrong with the Texas power grid? by dwohnitmok on Tuesday February 16, 2021 @07:54PM (#26161160)
Oh interesting. So you're saying it actually accelerates net heat loss to the environment?
Re:What went wrong with the Texas power grid? by jcims on Tuesday February 16, 2021 @08:01PM (#26161221)
Probably to a small extent but the more pronounced effect is the heat gradient. The rest of the house becoming quite a bit colder just sends you back to the fireplace, which is generally not a bad place to be, so overall it's not a major issue.
Re:What went wrong with the Texas power grid? by KMag on Wednesday February 17, 2021 @06:01AM (#26165052)
> so overall it's not a major issue

... unless the extra peripheral heat loss freezes pipes.

Re:What went wrong with the Texas power grid? by jandrese on Tuesday February 16, 2021 @08:25PM (#26161432)
It does, and it creates a floor on the outside temperature where the heat from the stove is overcome by the losses of sucking in the cold air. This depends on the design of the stove. Some wood stoves pull down the firebox air from the outside to avoid this problem, but it is fairly unusual. There is a second heat exchanger with its own fan that circulates the inside air. The problem with this is that you still lose a lot of heat up the chimney.
Re:What went wrong with the Texas power grid? by yetihehe on Wednesday February 17, 2021 @03:12AM (#26163920)
> Some wood stoves pull down the firebox air from the outside to avoid this problem, but it is fairly unusual.

AFAIK in europe having outside air intake in stove is mandated by law. You can not use it, but all newly built houses have outside intake if someone was planning on adding wood stove. You also need to have proper vent near your stove, so even if it uses inside air, it will typically get it through that. I have automatic pellet burning furnace in basement for normal heating needs (it starts automatically when needed, uses 3 temperature sensors on floors and in basement) and wood stove for "romantic" purposes, but when it's fired, it heats up almost whole house and pellet stove sees that no more heating is needed. I have lots of leftover wood from construction phase, so wood stove will pay itself back from reduced use of pellet.

As for losing heat through chimney - properly mounted and operated wood stove doesn't lose that much heat through chimney. Most of them have long enough steel pipe from stove to chimney, which reuses some heat from exhaust and ventilation channels in chimney, which are heating incoming air.

Re:What went wrong with the Texas power grid? by bluGill on Tuesday February 16, 2021 @09:12PM (#26161776)
Many fireplaces that HSE outside air sometimes put hot smoke out the intake. The intake probably wasn't designed for this so it is a fire hazzard. This can be avoided, but if you don't know how you probably didn't.

Then again Ben Franklin figured out how to make a fireplace that worked yet most don't.

Re:What went wrong with the Texas power grid? by brandon272 on Tuesday February 16, 2021 @08:01PM (#26161226)
I doubt this net-loss is the case for most new gas fireplaces with direct-vent exhaust systems, in which case the combustion air comes from the outside. This is what I have. Not sure how common these would be in Texas. It can also be used in the event of a power outage. (Minus the fan) [1]

[1] https://www.heatilator.com/owner-support/troubleshooting-and...

Re:What went wrong with the Texas power grid? by ctdonath on Tuesday February 16, 2021 @07:54PM (#26161162)
Yes. You’ve got a big hole in the wall/ceiling with a pressure differential blowing most of the heat up & out while sucking cold air in. Balanced improperly, you get a radiant heat area with rest subject to cold air.
Re:What went wrong with the Texas power grid? by ineedasername on Tuesday February 16, 2021 @10:23PM (#26162261)
Seems like they should divert a small part of their output to keeping a small battery backup just in case of emergencies. Then in an emergency the battery could reignite the system and run the blowers with the furnace again diverting some output to keeping things charged.
Re:What went wrong with the Texas power grid? by conk on Tuesday February 16, 2021 @10:50PM (#26162428)
You would need the generator to provide about 100 watts to run the electronics and blower. Something passive like a thermoelectric generator would require a large amount of surface area to get this much power. Something more active like a traditional generator would require significant maintenance. If you’re really concerned your best bet is to get a couple Powerwalls and limit what you run off them. You could go a week running just the furnace and charging cellphones.
Re:What went wrong with the Texas power grid? by ineedasername on Wednesday February 17, 2021 @09:33AM (#26166655)
Power walls are pretty expensive. Much cheaper-- if you're primary concern is keep heat going and maybe a few other basics-- would be a low-maintenance dual fuel generator. Unlike the powerwall it's run-time isn't limited. Prolonged blackouts will run the powerwall dry, but with a dual fuel generator as long as you can get gasoline or propane you're good to go.

I suppose if you can afford it, go for both and have multiple reduncancy.

Re:What went wrong with the Texas power grid? by 8note on Tuesday February 16, 2021 @10:32PM (#26162316)
Or like a standing bike?

Ride the bike to start the heater in a blackout