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Questions tagged [heating]

Heating is warming a space for human comfort. Use this tag for questions on space heating and central heating. For questions about heat for preparing food use the [cooking] tag. For heating water use the [water-heating] tag.

6
votes
1answer
414 views

Relative carbon footprint of gas or electric heating (UK)

Inspired by this question: Given the current UK (2014) generation mix, would changing a house from gas to electric heating increase or decrease its carbon footprint? The original question was about ...
11
votes
1answer
597 views

Reducing the setpoint by 1 degree C will save 7% energy: what's the origin of that claim?

I often hear a claim saying that reducing the thermostat's setpoint by one degree C will reduce the overall yearly energy consumption by 7%. I've heard heating control manufacturers, energy ...
5
votes
2answers
2k views

Boiler, timer, thermostat, radiators - how to set to minimum in summer?

I'll give the specifics of my set up, but I ask this in the hope of getting a more general answer too, because it's more helpful to more people. I live in the UK, and a typical central heating set up ...
8
votes
1answer
207 views

With regards to a Air Source Heat Pump, what is a “thermal shift setting”?

I have had a Panasonic Aquarea ASHP installed. The manual talks about a "water temperature thermal shift setting" which can be set to -5°C to 5°C. It doesn't make it clear at all what a "...
10
votes
1answer
694 views

Is opening windows wide or opening them slightly more efficient for exchanging air in a room on a cold day?

For those who wish to replace the air in a room during a cold day with active heating: Given that the purpose of opening the windows is to exchange as much of the air in the room as possible with the ...
6
votes
1answer
684 views

Setting radiator temperature to save energy

The heating system at our home is set to auto. I guess this means that our boiler will automatically operate as to maintain the temperature of the home. How much should we set the temperature of the ...
4
votes
3answers
994 views

Are there technologies that convert algae directly to heat?

There are a lot of buzz about algal biofuel. I'd like to use algae as a clean fuel for space heating. I wonder if there are technologies out there that convert algae directly to heat without having to ...
7
votes
2answers
195 views

Which is more “meter” efficient? I would like my utility bill to significantly cheaper

I live in a 3 bedroom, two bath, large den, kitchen, attached garage Patio home. I live alone except for when my kids are in from college which is rare. I am hot natured so I keep my electric heating ...
10
votes
2answers
362 views

Should I take advantage of the higher heat pump COP during the warmest part of the day and “bank” heat in the house?

I am aware that heat pumps are able to move more heat into a building per unit of energy input (the "coefficient of performance" or COP) when the source (outside) temperature is higher. My question ...
7
votes
2answers
939 views

How to save heating energy with roommates?

I live with roommates, and am only a renter not owner. I'm looking for ways to help with energy conservation despite this. We have one roommate who is wasteful about leaving lights on and, in ...
6
votes
3answers
6k views

How can I estimate the gas usage of a pilot light?

Can anyone provide a method to estimate the gas flow rate to sustain a pilot light, using just the apparent size (flame width and length) and reasonable assumptions for things like gas line pressure? ...
10
votes
1answer
24k views

Is Using Blankets to Insulate Doors and Windows Effective?

Are heavy blankets effective insulation when used over drafty windows as curtains or when hung in doors to shut off an unused space? Is it more effective to seal the windows with plastic?
27
votes
4answers
129k views

Which type of portable electric heater is better?

When one is buying a portable electric heater, there are at least three different types available: Radiative halogen heaters Fan heaters Oil-filled radiators and similar Images of examples of each ...
16
votes
5answers
21k views

Is it practical to use an infrared space heater along with a heat pump system?

We live in a house that has a heat pump system, for AC and heat, with a second-stage heating coil for aux/emergency heat. It frequently gets down to below 30 degrees in our climate, at which point ...
12
votes
4answers
294 views

Water heating / electricity production by using earth's warmth?

I'm very curious, why hasn't anyone done this? In most places on earth, the temperature gets 25 degrees higher (celsius) for every kilometer in depth. How hard would it be to drill 4-5km, put a U-...
6
votes
1answer
306 views

How to manage a clogged chimney problem in a rocket mass heater?

I see some designs for rocket mass heaters on the internet and I found them very interesting as a sustainable heat source. In a normal wood-burning fireplace, the chimney needs frequently cleaning. ...
5
votes
2answers
46 views

I'm on mains gas and live in England, am I eligible for the domestic RHI?

The domestic Renewable Heat Incentive is about to launch, in different formats, to different constituent countries of the UK. It is an incentive to install particular accredited renewable heat ...
14
votes
4answers
202 views

Is it true that if you have a thermostat, then there is no such thing as 'waste heat'

Consider a situation in which I live in a fairly cold climate, and I like my house kept at, say, 17 degrees. I have a heating system in my house that produces more or less heat depending on the ...
14
votes
2answers
2k views

What is the most sustainable heating strategy for a home?

I am looking for a new place to live and I know the winters will be very cold (-20 C). Coming from a warm climate country, I want to learn what to look for in a heating system. From the bit I ...
21
votes
4answers
133k views

Leaving the oven door open for heat - bad idea?

I've heard before that it's a bad idea to use an oven to heat your house, because it's inefficient and carries the risk of carbon monoxide poisoning. But what about leaving the oven door open after I'...
22
votes
5answers
6k views

Planting trees for firewood - how many?

I'd like to heat my house using self-grown firewood. How do I go about calculating the number of trees I'd need to plant each year to make it sustainable - same number of trees harvested each year as ...
9
votes
1answer
149 views

Solar water heater from plastic windows - what are the considerations?

I've been able to acquire several plastic-framed ("energy-saving") windows - it appears some contractor messed up the measurements and a whole batch of new custom-made windows for a nearby ...
13
votes
4answers
185 views

How can I decarbonise my domestic heating, given severe physical constraints?

tl;dr : For the millions of dwellings that have significant physical constraints imposed by the physical fabric of the building, its configuration and location, that rule out heat pumps, biomass and ...
12
votes
1answer
239 views

Is it economically sensible to install a heat exchanger on my wastewater pipes?

In the winter, I rather enjoy hot showers. I try to keep them short (5-6 min), but it's still a lot of heat going down the drain and out of the house - particularly with 3 other people who do not have ...
16
votes
2answers
1k views

Which kind of paper should be recycled and which should be burned?

Paper has a relatively short life-cycle (compared to natural gas or crude oil) and belongs to sustainable materials. Paper can be nicely recycled by: reusing making notes on the other side of one-...
62
votes
10answers
12k views

What is an energy efficient way to get fresh air indoors during winter?

Letting some fresh air inside is always a good idea, but during the winter it seems a bit wasteful to fling open the window and let the fresh air in at the expense of all that hot air going out, and ...
23
votes
6answers
11k views

How can I add thermal mass to a woodstove, without a lot of weight?

It's well-documented that adding thermal mass to a woodstove will improve efficiency. You can burn smaller splits of wood hotter, causing more complete combustion. The additional heat output won't ...
28
votes
5answers
1k views

Should I use my wood fireplace?

I live in a relatively modern (built 1983) home, which has a fireplace in the living room. How should I decide if I should use the fireplace for heat, or strictly use use the natural-gas central ...
13
votes
2answers
282 views

How to keep warm with limited use of fire?

The general rule for keeping warm in wilderness in cold climate is to make fire, as big as possible. While being effective, it's not sustainable in longer perspective because it is depleting natural ...