Plume from heating boiler

The problem is of course how does he tell whether his plume is smaller because

• the exhaust is too hot
• most of the moisture is condensing inside the boiler.

They would appear to have the same appearance, but opposite efficiency.

Andy

There seems to be a lot of variety in the Baxi 830 range so you would need to be more specific.

Mine is a Combi boiler (no hot water tank, just instant* hot water).

But as yours is a current model I would expect it to perform more efficiently and have additional features.

Does it not have a pre-heat option? Many combis can keep a couple of litres of water "tempered" and ready to go, so you get skip some of the warm up time and get a response more like that from a stored water system.

The big problem with these is that they’re often cryptically and non-intuitively labelled (like the “Turbo” button on PCs of old). Often just as “Eco” without any explanation of whether it should be on or off to economise.

It’s also pretty wasteful of gas (like the old pilot lights), needlessly keeping a reservoir of water warm at night when you don’t need instant response.

Tim

It was the cycling of my old Ideal Logic boiler that did it for me - it made quite a bit of noise, plus the pump overrun. Also there was no reservoir - it'd just heat the internal circuit, so of little actual benefit.

Quite often the "eco" setting turns off the hot water tempering.

Depends on how much it keeps and how well insulated.

Not on my 2006 Baxi 195HE.

Under consideration for its replacement, or a small under sink electric. Probably could get away with a solar panel on the front of the house except regulations would say 60° required.

Water still has 20m to go from boiler to kitchen sink.