Makeit go Right
18-07-2010, 05:33 PM
My general feeling is that the Altherma (or Ecodan) system, with all the radiator/convector field pipework installation is quite an expensive scheme, even though it boasts low electrical running costs (if sized correctly).
Has anyone compared an Altherma system against, say single/twin splits or a mini VRF system, as to install cost PLUS say 5years running costs.
Presumably the inverter splits would need a bit more electricity to run than the Altherma (not too much) yet would be the favorite to come out the cheapest install. (HWS not included, though.)
Then there is a Mini VRF option, such as the Fujitsu J-series. And 1-2 companies offering a HWS cylinder/tank attachment that makes it very comparable with Altherma scheme. (Presumably the Fujitsu/etc warranty may be voided with one of these HWS tank attachments between compressor and condenser, which would have to be factored in.)
Anyone looked into this?
Has anyone compared an Altherma system against, say single/twin splits or a mini VRF system, as to install cost PLUS say 5years running costs.
Presumably the inverter splits would need a bit more electricity to run than the Altherma (not too much) yet would be the favorite to come out the cheapest install. (HWS not included, though.)
Then there is a Mini VRF option, such as the Fujitsu J-series. And 1-2 companies offering a HWS cylinder/tank attachment that makes it very comparable with Altherma scheme. (Presumably the Fujitsu/etc warranty may be voided with one of these HWS tank attachments between compressor and condenser, which would have to be factored in.)
Anyone looked into this?