On 21/02/2019 19:56, Andy Bennet wrote:
On 21/02/2019 19:48, The Natural Philosopher wrote:
On 21/02/2019 18:52, NY wrote:
"Andy Bennet" wrote in message
...
We looked at installing an air source heatpump, would have cost
£13k to upgrade our existing wet system.

So does it heat the rooms by blowing warm air (*) through vents in
the room?

No

(*) I presume it does, since you say that it replaces your wet system.

Oh dear. Heat pump produces warm water,. Needs massive rads or
underfloor pipes and LOTS of insulation.


Two heat pumps in series can produce 80C down to -7C outside temp.
LG, Daikin and Panasonic already produce such systems which can use
existing rads.

Air source heat pumps are not an attractive proposition for the very
many Victorian terraces, even if the fans were put at the bottom of
(often short) gardens and a practicable way found to insulate their
solid walls without all the unintended consequences.

I blame the Luftwaffe's incompetence.

--
Robin
reply-to address is (intended to be) valid