Which air source heat pump?

[willing2learn]

Hi guys, my wife and I are doing a self build. I'm a GSR plumber. There's no gas in the village, we were toying with the idea of going down the pellet burner root. But are now swaying towards an air source heat pump, with solar geothermal and a log burner in the lounge.

I've never installed a heat pump, and not sure which one to consider/avoid.

Any views on this people?

 

[mick06]

Ice stick, octopus heatpump system, no drilling into the ground, only a compressor, swedish design, also hot water cylinder with heatpump , ho****er 24/7, easy to fit; i've fitted the ice stick to new and old heating systems, and the unit is gauged,so i can tell how its performing, new build insulated house 2000 square feet 550 to 600 euros a year to heat; hotfoot .ie is the company ;

 

[ajn9000]

Hi Mark, do you have any experience with the ecocent cylinders then? The plan was to have the vents over the showers and near the log burner, and maybe on in the utility room.

willing2learn - did you make a decision? - we are in similar situation except that I am electrically qualified but not a plumber

 

[Worcester]

ecocent / Giona / et al take heat from the house, i.e. it will take it from the radiators, underfloor heating etc.
So in practice you heat the house and then take that heat to heat the water. Some of the units can take air direct from outside.
It's an air source heat pump by any name. so depending upon how you are planning to heat the house depends upon whether it will be efficient or not.

From another post:

The man at Giona strongly advised against using an internal source for the inlet because it would be taking heat out of the house which has to be replaced by drawing heat in from the outside. Logically it makes no sense to me to be pumping warmth out of the house only to draw cold air back in. He stated that the inlet and outlet would both be outside.

ASHP's based on our experience
Tier One: Panasonic , Daikin
Tier Two, Samsung, Mistubishi
Nibe are unnecessarily complex, Dimplex units cannot comment on, Mistubishi complex to set up CORRECTLY..., Danfoss no direct UK support, so you're on ya own..
Best Installer Support #1 Panasonic, #2 Samsung.

 

[fishnchips]

Can't pass comment on other manufacturers, all I've fit is Mitsubishi and find them to be really good. Flow rate through heat pump is very important. Avoid microbore, depending on the distance from heat pump to cylinder and size of heat pump but to be safe use 28mm between heat pump and cylinder. I actually find the technical very good (certain lads anyway) pre sales speak to Louis Sousa

 

[quality]

I agree on the mitsi being complex but mainly because there is so much that can done with the FTC 4 & 5 control and experience is a must to get them right. Danfoss don't really need much support as there so simple And overpriced