SAP Energy ratings for you
Ordinary incandescent light bulbs have been around for a hundred years. In fact they’re still around. They were never made illegal. They are cheap, costing around 70p, and a lot of budget shops still sell them. What are the problems
Some of my customers really like underfloor heating but I, as an energy assessor, always have a slight feeling of panic whenever I see it. Why is this? Underfloor heating avoids the need for bulky radiators on the wall and
Windows have a U value. This is a measure of the amount of heat that they lose. A high U value means they lose more heat. A typical modern double glazed window might have a U value of 1.8. A
There was an Energy Forum in the Civic Centre at Gateshead. One woman asked if she could save fuel by leaving the central heating on all day. She couldn’t save fuel by doing this but I can imagine her thinking
A radiant heater produces heat in the form of light. There are different wavelengths of light and our eyes see a limited range of wavelengths. The wavelengths of light we can see are the colours of the rainbow – red,
Modern construction techniques produce housing that is particularly airtight. Old houses have an air pressure of Q = 15 so you didn’t need to worry about it. Modern construction produces an air pressure of Q = 5, sometimes achieving Q
As a SAP assessor solar panels were always something I tried to avoid. There are limitations to most customer’s budgets. Solar panels used to cost £10,000 or more. They were out of the question. Solar hot water systems were often
Some councils like to go beyond national building regulations and have their own standard. This might be 10% better than national building regulations in some areas or require 10% or 20% of energy to be generated by renewable means. The