8 votes

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

tl;dr: Yes, lowering the room thermostat at night will generally help save energy, assuming we are in the heating season (winter), rather than the cooling season (summer). Let's take two points in ...
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5 votes
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How can I determine the U-value (or R-value) of my existing double glazing system?

First order approximation: R-1 (British units BTU/hr/ft2/°F) per sheet of glass. So double pane is R2, triple pane R3. Second order approximation depends on the frame material, and to some degree on ...
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5 votes

How can I determine the U-value (or R-value) of my existing double glazing system?

I suggest you use a U-value kit from greenTEG. It is easy to use, very accurate and you get the U-value of any position of your wall or glass within a few days of measurement. I tested it on my new ...
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  • 51
4 votes

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

The glib answer is to use less energy. The best way of doing that is fixing the fabric of the house - massively increasing insulation, massively decreasing air permeability (and as a result fitting ...
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3 votes

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

A long-term consideration is increased condensation from cooler air in the far corners of rooms, which encourages fungal colonies. These are bad for health and eventually expensive to treat. Keeping ...
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3 votes
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Will this work to prevent my pipes from freezing?

Clarification of terms: Your tap is the downstream end. The City water supply is the upstream end. My understanding of your situation: City Waterline Building shutoff vale Local distribution valve ...
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2 votes

How much coil do I need to heat a given length of pipe (as a function of x,y,z)?

I've used them. I've never been happy with them. If you do use them you need to follow these rules: If you wrap them you must have the wraps evenly spaced. You can't have 3 turns per foot at one ...
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2 votes

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

is it really worth it.. can mean something else as well: During the wintertime: Lowering the temperature has (sometimes) a nice side effect - you will lose weight. The amount of heat given from the ...
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  • 39
2 votes

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

You should find the best time to lower/raise the thermostat. The more thermal inertia your house has (the better it is thermally isolated), the earlier you should lower the thermostat. The faster the ...
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2 votes

MVHR no longer the ventilation of choice in some Nordic countries?

I would answer this as a comment, but comments don't accept multiple paragraphs. On the face of it this is a bad idea. Better to pull air OUT of the house, and let it sneak in where it can. ...
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2 votes

How can I determine the U-value (or R-value) of my existing double glazing system?

My challenge was slightly different. I was purchasing new NorthStar windows to replace all of the old windows in my house but wanted to make sure I was getting what I paid for, as the windows would ...
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  • 21
1 vote

Will this work to prevent my pipes from freezing?

Why not simply install trace htg to the problematic pipe? Of course that's assuming you can access it! Insulation, of itself, does not stop freezing but simply slows down the heat loss.
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