A live view · for householders
What is the pipe outside your wall costing you?
If you have a heat pump, there is a run of pipe between the outdoor unit and your house. When that pipe is bare or thinly wrapped, it sheds heat into the garden all winter, and your heat pump quietly pays to replace it. Drag the slider and watch what the insulation choice is worth. Nothing about your home is collected or stored.
Insulating this run is worth
£18 a year
about £266 over fifteen years
One thing changes at a time; everything else holds still.
Left bare
£26 / year
314 kWh of lost heat
With 13 mm of insulation
£8 / year
97 kWh of lost heat
Your numbers
Your pipe, from above. The blue ring is the insulation you chose.
The first few millimetres do most of the work. After that, each one helps a little less.
Get the reading for your home
This page shows one pipe, in general terms. The same record holds a reading for your home, from public data, before anyone visits. Leave a postcode and we will send it back.