temperature

Background: I live on the first floor in a block of 24 flats with a water pressure booster set (this has been serviced and is in full working order). I have a Weissmann vitodens 100-w boiler. One shower is a Bristan mixer shower, the other is an Aqualisa thermostatic quartz A2 mixer shower...

hello, I have a Worcester greenstart 440 Cdi combi boiler feeding a wet underfloor to my whole house. There’s one manifold upstairs and onedownstairs. The underfloor manifolds have a trv to make sure the flow temperature remains at 40-50 (or even lessbecause I have a laminate floor). I have...

What's the best way to measure flow & return temperature at radiator? What type of thermometer?

Hi all Could anyone give me a ballpark, very rough cost for upgrading of radiators in an office of about 5,000m2 to low temperature radiators ( running at about 40C ), assuming minor pipework modifications for each radiator - including supply of the radiators + time and materials? Just looking...

Evening all. Last month i had a new Worcester Bosch Greenstar Compact 32CDI combi installed. I have come to notice that when the CH is on there are drastic fluctuations in the temperature of the hot water when the tap is on. The water temperature is currently set to 46 degrees on the boiler. I...

Hi, I am trying to find a suitable wireless thermostat with heating timer options which can be programmed for 4/5 times a day ON/OFF setting with different temperature settings. Will appreciate anyone sharing their knowledge. Thank you

Hi, Can anyone confirm to me whether the surface temperature of a domestic radiator is determined only by the flow temperature of the water going through it ( i.e. c. 75 deg). I am currently having a battle with a heating engineer who is arguing that it is down to a lack of in-ceiling insulation...

Hi folks, I recently moved into this bungalow and am not at all happy with the boiler, which is situated in the garage. Every morning I have to run off 3/4 of a bucket of water before any hot water arrives and even then it's not very warm I have to boil a kettle to wash the dishes. Kitchen and...

I have a BIASI M90E32S which had a faulty expansion vessel. Pressure kept dropping so we added a new external vessel. But now the heating comes on for an hour or so. At a certain temperature the boiler cuts off. After a restart it works for an hour again. Please help. Could it be a faulty pump...

Shower valve off combi boiler goes hot/cold and is never constant. Does anyone ever “service” these or is it quicker and cheaper to replace whole thermostatic valve? Can’t imagine there’s much to them apart from the cartridge and inlet filters.

In my flat I have two types of radiator valve, one that can be adjusted just by turning and a different type of valve (shown in pictures). Sometimes I want to control the temp in different rooms. If I want to adjust the temperature on these radiators, is the only way to unscrew them and...

Hi there We've had a new glow worm betacom 30C installed recently as part of an extension. Only in the last couple of days we've needed to switch the heating on but the radiators are absolutely burning hot, even when the valves are set very low, like 1. Is there a way to decrease the water...

Vaillant ecoTECH Plus 837. Hot water (taps) temperature dial on boiler - rotates - but does not change the temp on the boiler - it's as if its no longer connected to the rotary switch itself. I think the plastic shaft is broken/snapped. Either way - is such a mechanical problem easily...

Hi all. As most of you will know I've gone back on the cards now and am now fault-finding one of our commercial hot water systems in a 5,800sq.m building. It's a large building on a hospital site. The hot water system is an old system! Heating is run from a steam feed from the main hospital...

Hi guys, Was at a customers recently & they had problem with fluctuating hot water temperature. On the initial repair visit I changed the hall sensor & the flow turbine as this was quite cruddy when I dropped it out to check condition. New one came with brass block so just removed old one from...

Hi, I have a conventional Greenstar 18ri in a house I rent out. Can anyone explain to me in simple terms the function of the CH control knob on the front of the boiler? When it was installed, the engineer set the knob at about three quarters way round to the right and said that was about the...

Hi all, new on here. I have a pumped shower which I am having trouble controlling the temperature. The hot water comes from a cistern in the bathroom airing cupboard and the cold from a dedicated shower tank in the loft. The tank seems reasonably well insulated but in cold weather the cold...

Hi Bath mixer tap is running too hot in shower, almost scalding. Other taps seem mostly good temperature. However there is immersion heater in flat. How do I differentiate whether element stat or mixer tap is failing.

So, recently had the Vaillant 350f thermostat replaced with a Nest and I'm left with a problem I can't wrap my head around. Boiler is Vaillant ecoTec 831 Plus and is only a couple of years old. With the Vaillant thermostat, the flow temperature would vary based on room temp vs set temp, but...

Hello. Excuse my ignorance but I think I MAY have a problem with my Potterton 40L boiler. Basically it runs ok for around 30 minutes and then it starts this cycle of turning off the flame, pump runs for a couple of minutes, the whole thing shuts down and goes completely silent, then instantly...