TW9

I'd that sound power or sound pressure? Our Ecodan is quoted as having a sound power of 60dB but that only results in 45dB sound pressure at 1m.

It does seem that in the UK we're largely in a one solution fits all mindset. Need heating? Fit a gas boiler. While the govt is trying to move us away from gas they aren't doing anything to break the mindset. Instead of the only solution being gas they're trying to make the only solution A2W heat pumps. A2A could work really well for some properties so why isn't it being promoted alongside A2W?

Our Sunamp needs 45 degree water so shouldn't cause a problem with CoP.

The Sunamp can be charged from the heat pump so it's no more expensive to run than a hot water tank... actually a bit less as there is less heat loss and no need to run legionnaires cycles.

You could use a Sunamp heat battery instead of a hot water cylinder. It isn't a cheap option but it's a lot smaller and might fit in the corner.

I don't know yet. I'm on a tariff that's the same price all the time at the moment but have yet to talk to OVO about running the system.

I was accepted on the OVO trial that you applied for. The install is happening this week and it's organised chaos. The photo is the back of the garage complete with 4 Sunamp heat batteries, a Damien Hirst masterpiece in copper piping and enough wiring and control boxes for mission control.