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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.

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Boosting radiator convection with fans

I found an article online from somebody who built a rig consisting of a number of pc fans mounted under a radiator, blowing upwards. A temperature sensor ensured the fans would kick in as soon as the ...
Bas's user avatar
  • 241
4 votes
1 answer
215 views

Running boiler intake along chimney for preheating

My house has a boiler in the attic that provides hot water for taps and for central heating. On the opposite side of the attic is a chimney pipe for the fireplace on the ground floor. I was thinking ...
Bas's user avatar
  • 241
2 votes
3 answers
409 views

How to heat an isolated room

I live in a medium-sized airy house whose bedrooms are all in the main part of the house, with the exception of one bedroom which is above the unheated garage. This room gets quite cold even in the ...
Rich's user avatar
  • 121
4 votes
1 answer
615 views

How can I vent smoke from a non-rangehood stove without losing too much hot air?

I want to vent smoke, such as roasting coffee smoke and cooking grease out of my kitchen. I do not have a hood, nor is there room to install one due to cabinet and window placements just above the ...
Enjabain's user avatar
  • 957
5 votes
1 answer
384 views

Need critique of my idea for a passive heating and cooling system for a tent/waterbed

The Idea A small thin waterbed mattress inside a tent cot that is filled with water that's heated by the sun during the day and cooled at night. The Details Get this tent cot and water mattress (...
Flurrywinde's user avatar
9 votes
2 answers
166 views

What is the rationale for a base temperature for degree-days of 12 degrees?

When evaluating the energy demand of a building, the weather conditions are supposed to be controlled for by calculating degree-days (sometimes also known as accumulated temperature difference). In ...
lindelof's user avatar
  • 501
9 votes
2 answers
13k views

Heat Pump vs Air Exchanger, What's the difference?

I hope this is the right place - I'm looking at buying my first home in a climate where a heat pump would make a significant difference on our energy requirements for heating and cooling. I've done ...
Ryan's user avatar
  • 91
7 votes
1 answer
106 views

Is it possible to calculate energy efficiency of a flat by knowing how much energy was consumed for heating?

During 6 days my heating system consumed 11,4 m3 of natural gas keeping its temperature at 20 degrees of Celsius. No human or other energy source (except for refrigerator) was inside the flat at that ...
Marian Paździoch's user avatar
8 votes
2 answers
195 views

Would you save energy by heating the air in a shower stall so that you could use colder water?

It is refreshing to take a cool shower in hot weather. And for the sake of discussion, lets assume that one should be "comfortable" with temeratures when taking a shower. Considering that the vast ...
That Idiot's user avatar
  • 1,479
6 votes
3 answers
376 views

Good alternatives to a fuel oil heating system in an apartment block

I live in a building of 8 apartments, in Belgium. We share a communal fuel oil boiler in the basement to provide hot water and heat. For the latter, each apartment has radiators through which a hot ...
KieranPC's user avatar
  • 163
6 votes
1 answer
171 views

Are there different types of water-source heat pump?

I have heard multiple names for water-source heat pumps. What's the difference between something called a water-to-water heat pump, and a seawater heat pump? Are they just different names for the same ...
good good good's user avatar
3 votes
0 answers
131 views

Which type of portable heaters are best suited to use in a static caravan?

I am looking for 2 portable heaters to use in a static caravan. One to go in the children's bedroom (safe to leave on at night), the other to go in the living room. Which types of heaters would be ...
Laura's user avatar
  • 31
10 votes
4 answers
326 views

Why are electrical cars encouraged but is electrical heating discouraged?

Electrical cars are very much promoted for a sustainable future, because they do not rely (directly) on fossil fuels. In the meantime, most of the electricity is produced with fossil fuels, such that ...
BNJMNDDNN's user avatar
  • 203
2 votes
2 answers
882 views

Infra red heaters

I have a nine hundred square foot home that has a wood stove as its only source of heat. I am planning to be away for one to two weeks a couple times this winter and am wondering if an infra red ...
Lori Doherty's user avatar
7 votes
2 answers
1k views

How much CO2 do those gas flame pits outside restaurants emit?

I've been noticing gas-fueled flame pit displays outside some "hip" restaurants, such as this one shown in a Portland Monthly article. I find myself reacting to them with disgust; it looks like they'...
Daniel Griscom's user avatar
8 votes
3 answers
2k views

At what point is it better to use a room heater vs a central heating unit?

I have a house which has a central heating and cooling system which I assume uses a heat pump. This central heating system is not zoned so when I turn it on, I need to heat the entire house. I live ...
dizzy's user avatar
  • 280
6 votes
2 answers
328 views

Are ground source heat pumps a form of geothermal energy?

This question may be about semantics as much as sustainability, but let's see... When I think of geothermal energy, I think of hot rocks (or hot aquifers) that are kept warm by the internal volcanic ...
Flyto's user avatar
  • 3,711
6 votes
3 answers
2k views

Oxyhydrogen as home heating method

I'm curious about the efficiency of using Oxyhydrogen as a home heating method. Oxyhydrogen can be generated from water. I understand the fact that it takes more energy to generate the oxyhydrogen, ...
Andrew Grothe's user avatar
1 vote
1 answer
52 views

Can I use new electric oven to protect kitchen plumbing

It is 9 degrees and front room space heater has quit. Thinking of taking kitchen space heater to front room and turning new elec oven on to protect plumbing. BRRR
dot's user avatar
  • 11
5 votes
4 answers
509 views

Pool, sauna and shower with electric heating and solar thermal vs gas heating?

I have four things that need to be heated on my house: Pool (28.000 liters solar thermal heated) Jacuzzi (I think that is like 400-600 liters is gas heated) Showers (actually they are all electric) ...
Freedo's user avatar
  • 281
2 votes
0 answers
32 views

How can I get my landlord to improve my apartments heating efficiency? [duplicate]

I am renting a unit in an older building that has a lot of gaps in the doors and windows and poor insulation in the walls. Is there a way to make the landlord fix this? Some sort of property codes or ...
Christina Rule's user avatar
6 votes
1 answer
83 views

How to interpret the efficiency of ground-source heat pumps?

This page at energy.gov says the following about geothermal (or ground-source) heat pumps. Geothermal heat pumps (GHPs), sometimes referred to as GeoExchange, earth-coupled, ground- source, or ...
mac01021's user avatar
  • 163
7 votes
1 answer
683 views

Does burning used motor oil to generate heat on-site have a lower impact than sending it for recycling?

The service station next to my office saves the used oil from oil changes to burn in a special heater in the colder months. It is my understanding that used motor oil can be recycled in a number of ...
That Idiot's user avatar
  • 1,479
7 votes
2 answers
296 views

Scavenging heat from exhaust flues

I am building a set of greenhouses. they will be 2700 sq.ft. each. I intend to grow year round in one and extend the season in the other two with them being dormant for 6 weeks mid winter. We will be ...
Michael Thomas Stewart's user avatar
10 votes
2 answers
6k views

Potential health risks with keeping temperature in a house low?

In this question on an alternative way of heating a comment was made that There are significant potential health risks with lowering a house to 16 degrees C What kind of potential health risks ...
THelper's user avatar
  • 14.5k
11 votes
3 answers
1k views

Use waste heat of electrical appliances in place of traditional heating?

Does it make sense to keep electrical appliances turned on, or at least not turned off, during the winter as a partial replacement for traditional heating? I'm thinking in particular of computers, ...
Jortstek's user avatar
  • 317
4 votes
1 answer
557 views

Solar Window Heater at Night

I have been thinking for a long time about building a Passive Solar Window Heater similar to this: I live in northern - North America which during the winter ranges from 30°F during the day to 0°F at ...
Steve's user avatar
  • 246
5 votes
2 answers
101 views

Sustainability of wood pellet sources for biomass boiler

We're considering a biomass boiler for our guesthouse (1820 vintage with corresponding energy issues). The opportunity to reduce gas usage and the economics of the RHI scheme in the UK (a sort-of ...
Cheeseminer's user avatar
3 votes
1 answer
194 views

Rocket Mass Heater Build

I'm getting ready to build my first rocket mass heater. I have access to free quartz stone and granite. Could I use this type of material to build my "J Tube" instead of fire brick? Not really sure if ...
Edward's user avatar
  • 31
8 votes
4 answers
382 views

Practical and cheap ways to get warm at home this winter?

Since winter is near, can someone suggest some practical ways to get warm at home without spending too much in gas or electricity? Also for every solution, please add if it can be done homemade and ...
albanx's user avatar
  • 183
6 votes
1 answer
83 views

Where to find cross-country data on winter thermostat (temperature) settings?

P. 136 of this pdf tells us that the average internal winter temperature of homes in Great Britain in 2010 was 16.9°C (62.4°F). I am interested in finding the corresponding figures for other ...
user avatar
10 votes
1 answer
178 views

Is building vertically instead of horizontally in climate with large seasonal temperature changes more sustainable?

My main line of thinking would be that you would build tall skinny housing that would allow the heat to gather in the upper levels in the winter and the cooler air would gather in the basement/lowest ...
Jack Fraser's user avatar
13 votes
5 answers
670 views

Lowering the heating thermostat at night: is it really worth it?

I've heard some very conflicting information regarding the effect of lowering the house heating thermostat at night. On one hand there are academic papers (such as Thermostat strategies impact on ...
lindelof's user avatar
  • 501
6 votes
1 answer
671 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 ...
Flyto's user avatar
  • 3,711
11 votes
1 answer
2k 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 ...
lindelof's user avatar
  • 501
5 votes
2 answers
3k 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 ...
ian's user avatar
  • 205
8 votes
1 answer
447 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 "...
Calanus's user avatar
  • 183
10 votes
1 answer
2k 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 ...
lyschoening's user avatar
6 votes
1 answer
840 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 ...
adipro's user avatar
  • 161
5 votes
4 answers
2k 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 ...
George Chen's user avatar
7 votes
2 answers
232 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 ...
skipsy henson's user avatar
11 votes
2 answers
467 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 ...
half-integer fan's user avatar
6 votes
2 answers
1k 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 ...
dsollen's user avatar
  • 723
7 votes
3 answers
11k 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? ...
half-integer fan's user avatar
10 votes
1 answer
51k 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?
Daniel Bingham's user avatar
29 votes
4 answers
156k 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 ...
Flyto's user avatar
  • 3,711
16 votes
5 answers
27k 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 ...
trpt4him's user avatar
  • 263
12 votes
4 answers
340 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-...
zrgiu's user avatar
  • 223
6 votes
1 answer
468 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. ...
DataMiner's user avatar
  • 447
5 votes
2 answers
53 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 ...
410 gone's user avatar
  • 14.7k