DHW flow rates - Intergas HRE 36/40

[bodneytrot]

I might be wrong, but the xtreme 36 only seems to give around 1.5L per minute more hot water than the rapid, at £800 more than the rapid 32 it would have to use a lot less energy to make it worth the cash.
I'm running 9 rads and will be powering and underfloor heated room (40m2), with 10 rads you'd have no problems running from rapid or eco RF.

FWIW, I was quoted to £3800 for a complete install, from nothing to finish (if this helps)

Yeah just checked that and its about 1.5l for the Xtreme. It also modulates lower but I don't really know how much of a benefit that is.

 

[Razor900]

@Razor900 have you any experience with the Xtreme model? If I went the combi route wouldn't this be worth considering other the Eco RF? I appreciate the warranty is shorter but the DHW output is greater, according to the spec at least. Seems to gain from recovering waste heat from the flue gas rather than any increase in power. Not sure how well that would work in practice.

I had the first Xtreme registered in a private house in this country

It's awesome but the ECO RF is still a very good boiler.

To make things even more complicated the Xclusive has also been launched which is identical to the Xtreme but without passive flue gas heat recovery so slightly less efficient but cheaper.

I wouldn't have quoted you for a 36/40. Unless you have 28mm flow and returns coming from the boiler it's pointless anyway....................