macliam

It could be down to the temperature of the gas supply ...... the previous owners of my house found that in the winter that they sometimes got poor combustion and a lukewarm bath. They got around this by swapping to propane in the winter, as the standard butane gasifies at a higher temperature than the propane, although it's generally more efficient. I get around it by taking showers!

Not much help to you, as you're on piped supply - but it might be worth talking to EDP to see if anything can be done.

liveaboard

That's an issue with liquefied butane in bottles, but does not affect natural gas [city gas supply].

macliam

Sorry, I'm not an expert on EDPs gas supply- are you? As I said, it's worth raising the issue with them if the heater fails to produce sufficient water at a high enough temperature for a bath.

Ingles

If you live in a area that has "hard" water , then it's possibly that the heater tubing coil flow is restricted due to a build up off calcium deposit in the tubing.
Once again I suggest getting in a professional to check it over.

Ukkram

The water pressure is strong so there cannot be a restriction. Also, the gas flame is strong and high. I can actually hear the flame throughout the flat.
I just don't get it.

RichardHenshall

It may be stating the obvious but have you tried reducing the rate at which you fill your bath using the bath tap? The heater can only produce a limited amount of heat which either means you have a lot of warm water or a lesser amount of hotter water. The reduced temperature of the incoming water in winter will also be a factor as more heating will be needed to reach the same target temperature. If the water is flowing more slowly, it can get hotter.

There will probably be a minimum flow requirement to keep the flame alight - you may need to experiment.

EMR

The mains water is certainly much cooler in winter, we do not need anything like the same amount of cold.
Its a good suggestion.

Ukkram

As I was saying some 2 months ago that I had a problem with the gas boiler not heating up the water enough so now it got worse. It stopped working altogether.

I could hear the clicking of the starter and the pilot flame would light but no gas came out the nozzles. I phoned EDP and 3 days later they still did not respond so I replaced the 2 batteries and voila...I had flame and hot water.

There must be a battery monitor circuit that for safety it would shut off the gas if the voltage got too low. Although it kept sparking and lit the pilot flame, the battery voltage was just not sufficient to open the main gas valve.

Just thought I'll post this info should it happen to others.

Ingles

Hi.Ukkram, Thanks for posting this info , It broadens the check list if any body has a similar problem.

carvoeiro

if you know the make of the boiler try and find the manual online
that someties helps

forget it just read the happy ending