Archive for the 'Overview' Category

7: Water heating – part 2 of 2

Continuing a look at the methods of heating, storing and supplying domestic hot water.

7: Space and Water heating – part 2 of 2

Continuing our detailed look at space and water heating concentrating on heat storage and heat source evaluation.

Establishing energy saving priorities

So far in the discussion we have looked at several things that could be done and the ranges of levels of possible improvement that could be achieved. Now it is time to start to focus in where the real effort (and budget) should be placed. It’s time to establish a priority order and a good [...]

When is a PassivHaus not a Passive House?

There have been many attempts to design dwellings with a reduced (or zero) carbon footprint. Several example buildings have been constructed, and many are being used in real life. In the UK the designs have sometimes been referred to as ‘Passive House’ as the design and construction has been predicated on making them ‘energy neutral’, [...]

The scale of the domestic low energy challenge

In my last post I gave some values for the key statistics required for a building to meet the PassivHaus ultra low energy standard. Now I’m attempting to put that up against what I expect to be the status of our new home, and current Energy Saving Trust recommendations and the current Building Regulations. This [...]

Domestic Energy – understanding the numbers

This blog post is designed to help you (and me!) understand the numbers related to assessing energy use. It is a kind of domestic energy values primer. Power and Energy In general conversation the terms ‘Power’ and ‘Energy’ are often used interchangeably, most confusing, as each has its place. Power is energy is used over [...]

Domestic Energy Use – background information

Doing some background research produces the following figures. In this case I’m quoting from Wikipedia, but the figures are corroborated across several well established sources. “The housing stock in the United Kingdom is amongst the least energy efficient in Europe. In 2004, housing (including space heating, hot water, lighting, cooking, and appliances) accounted for 30.23% [...]

The Big Energy Issues

OK. Before we begin to get into the nitty gritty of the project let’s take a moment or two to set the context. There are a number of questions floating about that help to set the scene, let’s look at some in statement form. “The earth is getting warmer, and that is caused by mankind.” [...]

Energy efficient conversion of a bungalow

This blog is about the thoughts, information, plans and realities of attempting an energy efficient refurbishment of a bungalow. One that is to become our new home. Now that our children have all grown up and found their own homes our long term house is far too big for us. So we have set about [...]