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asked 2 weeks ago by Michelle
updated 2 weeks ago by Michelle
What is a combination valve and are they expensive to replace? I have been told I need a new one.
Admin 26/08/2026 21:06
A combination valve is an important component on many unvented hot water cylinders. It normally combines several functions into one valve assembly, including pressure reduction, (more)
asked 1 month ago by Paul K
updated 1 month ago by Paul K
My electric bill is too high and I am trying to save money
Admin 12/08/2026 10:11
For a typical domestic hot-water cylinder, the thermostat should generally be set to around 60°C. This is a good balance between having sufficiently hot water (more)
asked 1 month ago by Admin
updated 1 month ago by Admin
I was told the tpr might be dripping, what is this?
Admin 06/08/2026 15:00
A TPR valve (Temperature and Pressure Relief valve) is the final safety device fitted to an unvented hot water cylinder. Its purpose is to prevent (more)
asked 1 month ago by Claire
updated 1 month ago by Claire
Admin 03/08/2026 16:14
A tundish is a small safety device fitted to the discharge pipe of an unvented hot water cylinder. It is usually made from clear plastic (more)
asked 1 month ago by MP
updated 1 month ago by MP
I have been told I need a thermal store, but its really expensive compared to other cylinders
Admin 01/08/2026 17:57
Although they look similar, a thermal store and an unvented hot water cylinder work in very different ways. An unvented cylinder stores the hot water (more)
asked 1 month ago by Olivia
updated 1 month ago by Olivia
My electric bill is really high, my friend says that leaving the immersion heater on all the time saves money as the cylinder doesn't have to keep reheating from cold. Is this true?
Admin 01/08/2026 14:31
In most cases, no. Leaving an immersion heater on all the time is usually more expensive than heating the water only when you need it. (more)
asked 1 month ago by Eve
updated 1 month ago by Eve
unvented water heater is only producing tepid water and the boost lights won't turn on. Require a provider in South West/ Somerset to fix it! Any contacts?
Admin 31/07/2026 15:26
If the boost lights won’t come on at all, I’d start by checking the electrical supply before assuming it’s a cylinder fault. It could be (more)
asked 1 month ago by Anonymous
updated 2 weeks ago by Anonymous
Admin 26/08/2026 21:11
A good quality immersion heater fitted to an unvented stainless steel hot water cylinder will typically last 5 years though many last a lot longer, (more)
asked 1 month ago by Nikki
updated 2 weeks ago by Nikki
I can hear the cylinder heating when the immersion heater is turned on, but the water isnt hot, even if it has been on for a couple of hours
Admin 26/08/2026 21:11
Hi Nikki If your immersion heater is making its normal heating noises but the water is only ever warm, there are a few common causes. (more)
asked 11 months ago by Sue
updated 11 months ago by Sue
Plumber Mike 04/11/2025 21:36
Could the open pipe be the tundish? Is it the black plastic funnel? The cylinder might be over due a service. Or it could be (more)
