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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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How many Kilowatt hours of heat does a 4000 sq-feet McDonalds emit on a typical day?

If I recycle the waste heat emitted by a Mcdonald's, can a well-placed Mcdonald's take the place of a community heating boiler?
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3answers
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Can the heat generated in a data center be used to heat households and offices?

I've just read the article Microsoft sinks a data center off the Scottish coast (The Verge, 6 June 2018) I understand that the cooling of a data center is a problem. Data centers produce huge amounts ...
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1answer
70 views

Can hot air move horizontally without a fan (vertical is easy)

Passive solar thermal, taking cool air at bottom and hot air out at top is easy. But can the same 'hot air rising' system be made to work horizontally. IE long black tube on a narrowboat Any ideas ...
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Temperature equalisation throughout the house

We have been living in our home for a year now, so have seen both summer and winter, and we are now looking to solve the heating and cooling problems we have. Heating The walls and roof of the house ...
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1answer
50 views

Are all Peltier-type stove fans the same?

I'm considering a stove fan to distribute heat from a small wood burner. The prices of commercial Peltier-type stove fans seem to range from £25 to £100. Is there likely to be a significant ...
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1answer
63 views

What should I do with coal that I have been given?

My wife and I recently moved from London to a lovely old cottage in the countryside with electricity, no gas and a wood-burning stove. We are incrementally improving insulation to make the house more ...
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4answers
116 views

better to heat house with gas or with electricity?

Is it better to heat house with gas or electricity? We have gas insert and gas heating but am looking at other options for sustainable energy use. Thank you!
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1answer
64 views

Newer heat pump vs new space heaters in Seattle winter

I see similar questions to this one, but mine is slightly different, so here goes: I live in Seattle, where the winters are mild, with days in the 40s°F (4-10°C) and nights in the low 30s°F (around -...
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42 views

Heat Recovery Ventilator HRV, metal vs paper core?

Which one is more efficient and has longer operating life, thin metal or nano paper core in a HRV? It will be used in a Nordic country. TL;DR I'm searching for a heat recovery ventilator. I am not ...
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212 views

How can a rocket mass heater be combined with a tight modern construction?

I currently have a house under construction. The overall design is for a tight, well-insulated building with a balanced active air exchange system (an ERV: a unit with two blowers, one in and one out,...
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3answers
79 views

Most cost effective heated flooring?

I am pulling out the carpet in my house. I live in a cold area. I want to heat my flooring, but don't want to spend an arm and a leg doing so. What is the most cost effective and energy efficient ...
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135 views

Is heating with candles economically and/or ecologically worthwhile?

Considering my home doesn't have a heating system nor chimneys, I wonder if it's worthwhile to heat using only candles. There are multiple dimensions to consider: Does it cost less than electric ...
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1answer
52 views

Heat escaping very old cob house

I have just moved into a semi-detached house (rented) made out of cob, heated with a wood burner which also heats up the water for radiators and washing. There is also a large boiler,electrically ...
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1answer
132 views

Can a household's organic waste alone produce enough methane for its own space heating?

If a household puts all its organic waste, from both the kitchen and the bathroom, into a biodigester, will it produce enough methane for the household's space heating in a low -25 °C to high -15 °C ...
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2answers
53 views

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 ...
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1answer
82 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 ...
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3answers
157 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 ...
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1answer
176 views

Best way to vent smoke from stove, without room for a hood

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 ...
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1answer
187 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 (...
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2answers
116 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 ...
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2answers
4k 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 ...
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1answer
70 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 ...
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2answers
143 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 ...
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3answers
269 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 ...
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1answer
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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 ...
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0answers
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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 ...
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4answers
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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 ...
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2answers
192 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 ...
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2answers
366 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'...
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2answers
1k 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 ...
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2answers
103 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 ...
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3answers
1k 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, ...
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1answer
48 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
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443 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) ...
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0answers
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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 ...
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1answer
55 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 ...
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1answer
421 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 ...
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2answers
155 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 ...
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3k 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 ...
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667 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, ...
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1answer
221 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 ...
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2answers
82 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 ...
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1answer
151 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 ...
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5answers
331 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 ...
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1answer
70 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 ...
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1answer
135 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 ...
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5answers
375 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 ...
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379 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 ...
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1answer
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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 ...
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2answers
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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 ...