Marvin

We have a small MVHR. I swap the filters every 6 months - have 2 sets so wash /clean the swapped set. I had a problem and it came down the the bearings on one of the fans (after 8 years). Replaced both sets on both fans. And whilst there cleaned the inside of the MVHR. Seems alright now.

With us: Heating: ASHP to water to radiators Inverter outside, Batteries outside, ASHP on roof MVHR unit in loft - fully insulated In utility room: 205litre cylinder - 300mm insulated, Buffer tank - 300mm insulated, all controls and valves- insulated Washing machine, Condensing dryer, Clothes hangers Current temperature in utility room 23.1C The room gets quite warm when washing and drying which is useful otherwise no problem. Never had a moisture problem anywhere in home. Our home is quite small compared to a lot on here -104 square metre floor area. I know of one friend who is doing that sort of thing on a big scale - circulating the heat in the house via another duct system! Our windows are east and west facing and the one thing I wish I had done was put in a system to take the heat from the east end in the mornings and send it to the west, and the reverse in the afternoons during the Autumn and Spring.

Absolutely, and purchasing of gas when supplies are cheaper...

Yup. And if proven to be successful will be a game changer! Thats why I put as much PV in as possible..

Er, I was thinking people should wear it.😂 But on a serious note our home produces more energy than it uses in a year, just not when we need it. We need good energy storage.

In the UK 45-50% of energy is used for heating. What we need is more sheep. We can then produce more wool.

Almost ditto. I run 32mm down first vertical into a 32 to 40 collar and 40mm swept bend and pipe from there on. Also, always use swept bends the whole way.

Oh and whilst you at it I would consider the 80amp meter might need changing....

Hi Everyone. I felt it was a good time to see how these things are working. Seems to me not too bad!

Hi @JohnMo We live nearer the equator than you so more sun...

This weather should indicate if the ASHP assumptions, calculations, designs, installations, running and power connections are up to requirement! Outside temp 5.4C Buffer tank temp aim 39.4C Internal temp 22C I wonder how Norfolk is doing after -12C over night...

Hi @SteamyTea There is a certain joy in knowing you paid once to reduce your energy use and the effect lasts for years! Every time the sun comes out a little thought in the back of my mind thinks about our hot water tank warming.

Yes a vertical Wadi.😂

Hi @Pappa On viewing your photo of the rainwater pipe from the roof there is green way above the lower bend of the down pipe. I would be inspecting the gutter down pipe outlet to see if there is any obstruction. Secondly I would also inspect its operation in the pouring rain to see exactly where the problem lies. Me thinks that the problem is starting higher up....

And fill the old waste pipe hole before you get rats! And around the new waste pipe And any other hole that vermin can enter.