condensing boiler inlet water maximum temperature

[Joeboy]

A pal of mine installed a inline small boiler on a bath circuit in a flat and it worked very well. Electric shower as well.

[greentangerine]

Also at the flow rates required for DHW I don't think an "inline" electric heater is going to be that good. I would think longer term and get a large storage tank - call it what you want - thermal store or what ever, but get a big one with two immersions and for most of the year a decent amount of PV and a solar diverter will keep your boiler off - or look at heating it with a heat pump for better efficiency. I have a 300 odd litre tank and it used to suffice for 6 of us (when we were "lucky" enough to still have the kids living at home!).

This is what I've done for the past 11 years; the DHW will switch over to the combi when the TS gets below a set temperature (which also means we are never without hot water) but for most of the year, the DHW comes from the TS.

[Paul_F]

For shower or bath a large HWC is going to be required - not something we have and space wise not something we can easily see as being installed inside the cottage, lateral thinking may offer other unique solutions but these would need very careful consideration to ensure they would be fit for purpose.

<snip>

Regards a HWC maybe I need to consider prices for bespoke shaped tanks that could fit an unusual positions and indeed which are aesthetically pleasing and can be on show rather than hidden away to see if that gives rise to any practical locations in the cottage?

Sounds like you might be a good customer for Sunamp - I'm not a huge fan (they're quite expensive for what they do), but they're very compact and I'm pretty sure you can set them up on the feed to a Combi so that the combi only fires after it's discharged.

[Moxi]

Thanks Paul,

I will have a read about those.

Moxi