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...is there an obvious reason why my hot water isn't getting super hot?
The water is getting hot, but not as hot as it's been. And I like a [b]HOT[/b] bath!
Boiler pressure us fine, and water temp dial is turned up to max.
(It's a Worcester Bosch Combi).
If it has a diverter valve (depends on age?) then it could be that.
Do the radiators warm up a bit when you run the hot water ?
If it has a diverter valve (depends on age?) then it could be that.
We had something similar. Switch it to hot water only and see if the boiler kicks in, if it doesn't it could well be the valve. Give it a gentle tap with a spanner a few times (that was the advice over the phone from our plumber), in our case it freed up the valve and we got hot water.
edit. our is a conventional boiler.
Cooler weather means cooler water entering the boiler. The thing can only increase the temp of the water so ugh before it exits the boiler on its way to your shower.
Get used to it until the warmer weather starts again.
Alternatively, if your mains pressure has increased then the water is potentially passing through the boiler faster than previously. Only so much time to heat up before exiting boiler....same end result as above.
Could also be a combination of both the above. Double the problem.
Pressure can be reduced with a pressure reducing valve on the rising main. Cost about £50 plus fitting. However if you can fix a bike, you can fit a pressure reducing valve.
Try running the bath a tad slower. Like someone said, it may not be able to heat the water fast enough.
Yea, if you wanted a properly hot bath in our last house you had to run a slightly slower bath. Run at full speed it created a hot, but not too hot bath without any cold added. Depends on all the things mentioned above and your boilers capacity.
As an example, our electric shower needs turning up at this time of year as the cold water coming through the attic is even colder than normal and the heater can only input so much energy in a fixed amount of time, slow the water, more time to heat.