ASHP: monobloc, split or combi?

[AndySat]

On 25/01/2025 at 07:09, Beelbeebub said:

I think the benefit is from the manufacturer pov. The outdoor unit is a standard aircon unit

I agree. Having a standard unit is probably a good thing in terms of price and reliability, but my current thinking is to go with a monobloc - simpler and uses less space in the plant room. Plus it puts any potentially noisy bits outside.

The UFH will be a single zone and based around WC instead of thermostats. But I may hedge my bets and at least run the wiring for a thermostat in the bedrooms...

 

[JohnMo]

1 hour ago, AndySat said:

But I may hedge my bets and at least run the wiring for a thermostat in the bedrooms...

Just do wireless thermostat, easy, battery lasts a couple of years. You can also move it about.

 

We are running WC but use a thermostat to trigger a second operating point, basically WC plus 2 degrees. Use the thermostat to force the heat pump to run hotter during cheap rates period and also shelly relay across the terminals of the receiver to drive the heat pump hotter during excess solar production periods. Converted 3kWh of excess solar in to 11.5kWh of heat today for free.