We have a normal boiler that feeds a hot water tank. It’s also possible that your water is running too hot because of a mechanical or electric failure in your boiler or system. Credit is subject to age and status and is available to UK residents with a bank account in the UK aged 18 and over who have not been declared bankrupt of had CCJ or an IVA within the last 6 years. Well, I don’t think anyone will blame you for getting annoyed, but there could be a reason behind everything. Don’t confuse the temperature on your room thermostat with the water temperature – they are two different things. If they are set too hot, they will override the boiler-heated indirect water heating system. Again, the effect will not be instant – you need to wait for the water to cool down, or you can empty the tank’s hot water by turning on a hot tap. If the temperature is lower than your setting, and there are no timers in the “off” position, the cylinder will start warming up. Well, that is what we are going to look at when it comes to combi boilers. ballybally Posts: 844. If your boiler it noticeably quite old or in poor condition then this could easily cause problems with the temperature. For heating systems that include a combi boiler, there could be an issue with the diverter valve. Combi boilers have some sort of control to set the temperatures. You need to know how to get things just right. So, while we have looked at the most common issues that could be causing your combi boiler to get too hot what should you do if the problems keep happening even after professional repairs have been carried out? Then test the temperature again with a thermometer. A combi boiler will need a flow rate of around 10 litres per minute, although some people argue it … These control the output temperature for the radiators and the hot water temperature. Either way, you are best advised to contact a professional engineer to examine your combi boiler to see if they can diagnose the problem. My hot water isn’t hot enough and I have a combi boiler. Fixing this issue is again, something that should only be done by a professional engineer. Green Yorkshire acts as a credit broker (not as a lender) and offers credit products through Vendigo from a panel of lenders. a dial that you physically rotate or a slider; or they could be controlled digitally, from a panel. The hot water temperature control could be part of a digital readout or a knob on the front of the boiler unit. Step 4: No hot water in electric boilers. You shouldn’t need to adjust these output temperatures as you may alter the boiler’s efficiency . Repairing or replacing a thermostat is not something you should attempt to do on your own. You’ll also need to specify what temperature you want your central heating at when it does come on. Solution: Reduce the temperature to between 40-50 degrees Celcius. Combi boiler temperature setting advice: Problem: Temperature dials on the boiler unit are too high. Remember the message from Goldilocks I mentioned earlier? Test again with the glass of water. So, after the intial flow which will come from the resevoir in the boiler, you may find the water cooler than previously for a given rate of flow. The average setting for a gas-powered hot water boiler is 180°F. A thermostat suffering from problems could cause misreading’s in the temperature it might seem like things are nice and cool only for them to be incredibly hot when you touch them. As the source of central heating and hot water, a functional boiler is essential to any British home – particularly during the colder months. If you are experiencing an issue with your boiler, this guide to common boiler problems may help you diagnose the issue before reaching for the Yellow Pages and calling in outside help for an expensive emergency service. A system or conventional heat-only boiler feeds its water in pipes around the hot water cylinder, which warms up the fresh water inside. Lukewarm water from a combination boiler, also known as "combi" boiler, can be a real pain for most people. Everyone one saying the same too. Trading address is 100 Thornes Lane, Wakefield, WF2 7QX. Green Yorkshire Ltd provide finance via this website and is registered in England and Wales No 08430523 – VAT Number – GB178937935. The dial on the tank is at 60 degrees, but the water coming out of the tap is much hotter. They could be manual, i.e. If I try to mix it with cold water it doesn't make a difference to the temperature, unless I turn the hot water right down, but then the pilot light in the boiler … Everything seems OK so far, but I have a question relating to the hot water temperature. Any interference in this process is highly likely to affect the water temperature. Yes, that is a strange way to open an article about the dangers of combi boilers being too hot but stick with me I am going somewhere with this. Adjusting the temperature of a system or conventional boiler can be a bit more tricky, as the thermostat and adjuster are often on the boiler itself. There’s no right or wrong temperature for hot water from the taps. Some models of combi boiler have two different temperature dials one for water and one for central heating. A boiler like a bowl of porridge should have its temperature right in the middle. Boiler water is circulated again and again. The temperature of your hot water depends on what kind of boiler you have, how it’s adjusted and whether everything’s in good working order. Thermometers are easily available from cooking shops and baby & child shops. This provides the appropriate level needed for most cold weather temperatures. If you think your boiler is able to be repaired then take a look at some boiler cover plans here. Now we need to know what type of boiler you have. It shouldn’t be too hot or too cold, and while a cold boiler likely means the boiler isn’t working or there is a boiler leak in the pipe somewhere what about it being too hot? Check your manual for details, but you should be able to lower the temperature at one of these controls. Water from boiler too hot? But there is a big difference between hot and swimming on the sun kind of temperatures aren’t there? The water might not be up to temperature, and if your hand is cold, the water will feel hotter than it would if your hand’s warm. ... the boiler will have to work harder to raise the temperature. Applications are subject to affordability, application, status and lending criteria. Domestic hot water flow rate: 10.2 litres per minute at 35 degree temperature rise (provided adequate mains water pressure is available) so it will be important to know how much hot water it delivers, and compare this with the cold water flow. An engineer will have to inspect the combi boiler first to see if they can diagnose what the problem is and then you’ll get a quote for repairs. How long it takes depends on how well your cylinder is insulated, but once a few hours have passed, or if the hot taps have been run a few times, the temperature should settle to your new setting. If the problem persists, you'll need to call an expert. One thing that’s useful to do is to check the temperature before you make any adjustments, so you can compare it after any changes. Once you’ve got your boiler running at the optimal temperature, you’ll want to set the timer for when you need heating the most. They both run through different systems, and although your cylinder might be on the radiator system, the water that you wash with is refreshed constantly – it’s just warmed by separate loop circulating through the boiler. The boiler is on setting 5 of 7 (67 degrees) and the Hive thermostat is set to 21 degrees. You can do this on the front of your boiler simply by following the instructions given. I just had a new Vaillant ecotec plus 831 combi boiler installed. If this doesn’t solve the problem, then you could have an issue with the dials or a more serious internal problem. But there is such a thing as too hot, especially when you consider that a boiler heats your home’s water supply as well. In the summer the hot water is hot all the time but in the winter the water runs hot and cold so you can't get a hot shower or a hot bath. A room stat can also cause the water to get too hot, but is normally protected by a safety stat within the boiler. Fantastic. Water flowing too slowly over the heat exchanger could cause it to overheat, as could a faulty thermostat. Then, dip in a thermometer to get the temperature. ... Saturday 13th January 2018. No one wants to feel like they’re on fire or risk suffering burns when they’re taking a shower, do they? The thingy on the tank is for the temperature of the water. It then goes cold for a while, then heats up to the temerature I set on the boiler thermostat. The story has plenty of messages to it for one thing breaking into a bear family home and going to sleep is a bad idea! But the eventual temperature will be the same as your hot water.! 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