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. Everyone one saying the same too. Combi Boiler won't maintain hot water temp. The average setting for a gas-powered hot water boiler is 180°F. Fantastic. Either way, you are best advised to contact a professional engineer to examine your combi boiler to see if they can diagnose the problem. Hi, I have a Baxi Combi Platinum HE boiler, and the hot water temperature to the hot taps fluctuates from hot (about 45 seconds) to luke warm (about 15 seconds) and then continues to cycle between hot and luke warm. But there is a big difference between hot and swimming on the sun kind of temperatures aren’t there? What you are doing here is telling the cylinder to start or stop the flow of hot water through the heat exchanger from the boiler. I'll … It’s also possible that your water is running too hot because of a mechanical or electric failure in your boiler or system. They work by heating water directly from the mains supply, so there is no need for a storage tank of any kind. The thingy on the tank is for the temperature of the water. A thermostat is essential to controlling the temperature of your combi boiler, so if it stops, you will need to call in a professional. The boiler is a combi condensing boiler and the water comes in from the mains. Water from boiler too hot? This will lower the temperature of the water going through the radiators and your hot water tap. Once you’ve located it, it could be a manual control (a knob, dial or a slot for a screwdriver) or digital. Well, while you could cross your fingers and hope for the best after paying for another round of repairs, I would strongly recommend considering a replacement combi boiler instead. However, combi boilers, despite being a more modern alternative, aren’t immune to problems. You can buy a boiler online with Boiler Central. Your boiler being too hot might seem a little strange after all aren’t boilers supposed to be hot appliances? Thermostat faults (even simple ones) will still require experienced hands to fix so with this kind of problem you should always call in an engineer to assist. If it’s a combi boiler, hot water goes directly from it to the taps. Yes, a nice hot shower is supposed to be a great way to wake up, and a hot bath is a traditional way to relax after a stressful day. 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. The temperature your hot water should be set to depends on the type of system that you have. You can do this on the front of your boiler simply by following the instructions given. You should be able to do it straight away. So, let’s look at some of the common temperature problems with combi boilers and find out how to deal with them. They may even drain the boiler is required. Check your manual for details, but you should be able to lower the temperature at one of these controls. However, it’s important to note that your boiler can’t operate in condensing mode for hot water… Do you you need hotter water from your Combi boiler, especially on the kitchen sink? Putting that debate aside, for now, we can conclude one thing which is that the flow rate is important. If you are unsure what is the optimum temperature is for your home, then it should be around 21 degrees which is a comfortable heat. If manually turning down the temperature doesn’t work, it’s time to call out a … It is killed by temperatures above 60 °C, so health organisations like the HSE recommend that hot water should be stored at no less than 60 °C. It’s also possible that your water is running too hot because of a mechanical or electric failure in your boiler or system. This type of pneumonia is caused by the Legionella bacteria, which thrives in water that’s between 20 °C and 45 °C. If your boiler it noticeably quite old or in poor condition then this could easily cause problems with the temperature. Some people like it very hot so they can clean dishes with it; others prefer it to be a bit cooler so they lower the risk scalding and can fill a bath without needing much cold water. Combi boilers are also much smaller than a conventional boiler because of this design change and are often the boiler of choice for the more modern household. Remember the message from Goldilocks I mentioned earlier? The temperature setting on the cylinder might be visible, or it could be behind a panel. Turning it down might make your boiler greener and cheaper to run, however, but if you have it too low, it will limit the temperature you can get from your taps. When the boiler comes on in the morning, the radiators het hot and the temperature quickly reaches 20 degrees (one degree lower than that set on thermostat). Solution: Reduce the temperature to between 40-50 degrees Celcius. The dial on the tank is at 60 degrees, but the water coming out of the tap is much hotter. Some models of combi boiler have two different temperature dials one for water and one for central heating. I was impressed with this performance on a high temp, but wouldnt normally have it so hot. 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. Yes, that is a strange way to open an article about the dangers of, It shouldn’t be too hot or too cold, and while a cold boiler likely means the, Well, that is what we are going to look at when it comes to, Combi (or combination boilers if you want to get formal) are water heaters and, So, let’s look at some of the common temperature problems with, Either way, you are best advised to contact a professional engineer to examine your, We are discussing temperature problems so it’s likely no surprise that, So, while we have looked at the most common issues that could be causing your. If it’s digital, consult your boiler’s instructions to find the settings, but it should be quite straightforward. Combi boilers have some sort of control to set the temperatures. After that, you may have a shower going hot and cold because the combi boiler can only pass on what it receives. It might seem like an expensive solution, but boiler repairs are expensive unless you have boiler cover, especially if you have to keep getting the same issues patched up time and time again. Test again with the glass of water. A pint glass or measuring jug are good – anything that won’t lose heat quickly. If the temperature is lower than your setting, and there are no timers in the “off” position, the cylinder will start warming up. The room thermostat tells the boiler whether to pump water through the radiators or not. However i have just had a new main combi installed on a property i rent out and we had the heating on 80C (its max) to see how it performed this aft. 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. Don’t confuse the temperature on your room thermostat with the water temperature – they are two different things. You’ll also need to specify what temperature you want your central heating at when it does come on. Applications are subject to affordability, application, status and lending criteria. Open hot … I have a Worcester Bosch combi boiler controlled by Hive wireless room thermostat. Then test the temperature again with a thermometer. Once the cylinder reaches your desired temperature, the flow will be switched off. Note the temperature. And of course, everyone is different what might be nice and relaxing for one person could be far too hot for another. 3. open tap more, luke warm water comes out, combi boiler comes on, water gets hot, beceomes a trickle and combi stops heating water. Turn the temperature of the tap control down a bit, then perform the thermometer test again. They could be manual, i.e. On the combi unit, you’ll find that you can set the temperature that the boiler should heat the water to before it’s circulated around the central heating system and delivered to the taps. If you have altered the temperature on the dials, but things still seem far too hot turn the boiler off and give things time to cool down. Instead, it’s heated on demand from the mains as soon as a hot tap is opened. My hot water isn’t hot enough and I have a combi boiler. How much this repair will cost will really depend on what is causing the problems with the flow rate. The installer set the temperature to 55 degrees. If it is a cylinder stat, then the hot water only, will get too hot, where if the central heating is getting too hot, it will be the stat in connection with the boiler. A room stat can also cause the water to get too hot, but is normally protected by a safety stat within the boiler. To maximise efficiency, we recommend setting your radiator dial to 75 degrees and your hot water to 60 degrees. Main Issue # 2: Your Combi Boiler is On Its Way Out. Adjusting this will not have much of an effect on the hot water, as the boiler will always try to match the tap temperature you set. Tap water too hot from combi. As the source of central heating and hot water, a functional boiler is essential to any British home – particularly during the colder months. Everything seems OK so far, but I have a question relating to the hot water temperature. Vendigo’s lenders will do a credit assessment of your circumstances when you apply. 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. 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. Either way, you will have two separate controls: tap and radiator. These control the output temperature for the radiators and the hot water temperature. 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. 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. Combi boilers heat water on demand as and when needed. I just had a new Vaillant ecotec plus 831 combi boiler installed. 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. 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. I have two very young children and worry about them turning on the hot … If this doesn’t solve the problem, then you could have an issue with the dials or a more serious internal problem. It will also be sure to be much more energy-efficient and safe as well. Unlike lowering the temperature in a combi boiler, cylinders will take time to cool down if they are at maximum temperature already. 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. What kind of boiler do you have? Remember, a combi boiler heats water as and when it’s needed, so the results should be instant. Make sure you are using the right one when you want to change the temperature. Green Yorkshire is authorised and regulated by the Financial Conduct Authority (reference number 718973). But aside from those dangers, it also teaches us the importance of getting things just right. Finding the right temperature is a balance between being efficient and avoiding scalding, but there’s a third consideration, too – legionnaire’s disease. 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. Well the house really got hot quickly and the rads were too hot to touch. Temperature drops and the cycle repeats. Modern combi boilers are just perfect for not taking up a lot of space in the home, whilst giving you instant access to hot water and heating day or night – at a moment’s notice. No more hot showers to soothe those tired aching bones after a hard day of labouring. Similarly, the temperature of your radiators in not the same as your hot tap water temperature. This will be higher than the other two. If your boiler keeps suffering from breakdowns, Well, while you could cross your fingers and hope for the best after paying for another round of repairs, I would strongly recommend considering a replacement, It might seem like an expensive solution, but, With us, you don't pay a penny until after your boiler is installed & fully working , what is the optimum temperature is for your home, boiler repairs are expensive unless you have boiler cover, take a look at some boiler cover plans here. For combi boilers, the recommended output temperature for the radiators is 75 °C and for the water it’s 60 °C. Anyone know how to help? If the problem persists, you'll need to call an expert. No one wants to feel like they’re on fire or risk suffering burns when they’re taking a shower, do they? If your boiler keeps suffering from breakdowns, constant repressurising issues or getting too hot, then it will likely be because of a more serious problem. Have a look on the side of the hot water tank itself, not the boiler, and check to … If you have immersion heaters in your cylinder, they will have their own thermostats. 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! Use our “Find an Installer” service to make your booking. Water flowing too slowly over the heat exchanger could cause it to overheat, as could a faulty thermostat. Keep making small adjustments until you’re happy with the temperature. This provides the appropriate level needed for most cold weather temperatures. 4. Boiler water is circulated again and again. Is your hot water cycling hot and cold? A system or conventional heat-only boiler feeds its water in pipes around the hot water cylinder, which warms up the fresh water inside. You might also be unable to alter things and return them to normal unless you shut the boiler off completely. In this article we’ll be dealing with bringing your water temperature down safely. Then, dip in a thermometer to get the temperature. 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? ... the boiler will have to work harder to raise the temperature. You might need to remove a cover to access the thermostat, and it’s often one that you adjust with a screwdriver. A combi boiler will need a flow rate of around 10 litres per minute, although some people argue it should be higher at around 12 litres per minute. Green Yorkshire Ltd provide finance via this website and is registered in England and Wales No 08430523 – VAT Number – GB178937935. a dial that you physically rotate or a slider; or they could be controlled digitally, from a panel. While they are more reliable than gas boilers, they are not always perfect so from time to time electric boiler users can find themselves with no hot water. Our hot water is too hot and I'm struggling to see how to turn it down. Well, that is what we are going to look at when it comes to combi boilers. I think this happens cause the water is too cold when it's coming into the boiler. 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. It then goes cold for a while, then heats up to the temerature I set on the boiler thermostat. A boiler like a bowl of porridge should have its temperature right in the middle. 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? If you are unsure what is the optimum temperature is for your home, then it should be around 21 degrees which is a comfortable heat. The settings for hot water is on the lowest on the boiler and when I run the hot water (anywhere in the house) the water becomes too hot. There’s no right or wrong temperature for hot water from the taps. If they are set too hot, they will override the boiler-heated indirect water heating system. Thermometers are easily available from cooking shops and baby & child shops. But there is such a thing as too hot, especially when you consider that a boiler heats your home’s water supply as well. Have you ever read Goldilocks and The Three Bears? This is an issue that many combi boiler owners fall victim to. The combi boiler can then deliver faster, but only for as long as the water store lasts. ballybally Posts: 844. The immersion heater is off (never used) If manually turning down the temperature doesn’t work, it’s time to call out a Gas Safe engineer. I have recently had a combi boiler put in, and whenever the hot tap is put on there is a really hot burst of water (too painful to use). Let us help you find your nearest Ideal Recommended Installer. Adjusting one should not adjust the other. If you have a combi boiler, hot water isn’t heated and stored in advance in a cylinder. 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. Don’t worry it likely isn’t just a case of really bad luck. Get it fixed with our handy guide. If your combi boiler’s flow rate is too slow and can’t even reach its minimum requirement, then it will often cause the water to heat more than it should. We have a normal boiler that feeds a hot water tank. Step 4: No hot water in electric boilers. Green Yorkshire acts as a credit broker (not as a lender) and offers credit products through Vendigo from a panel of lenders. Poking your finger into water flowing from the tap isn’t accurate. Now we need to know what type of boiler you have. Combi boiler temperature setting advice: Problem: Temperature dials on the boiler unit are too high. There could be a third control, which is the temperature of the circulating water, or pre-heat. In the event that it gets stuck, you could end up with hot water but no heating, or vice versa. Well, I don’t think anyone will blame you for getting annoyed, but there could be a reason behind everything. There will be variations between models, but most Worcester combi boiler thermostats work on a principle of selecting the hours you want the radiators to be on from a 24 hour clock. Although it’s quite rare, especially in water that is regularly changed, like in a cylinder, the risk should not be ignored. Remote control devices are available, but for most people they are unnecessary as the temperature is probably adjusted rarely. Many of the problems you encounter with gas boilers, you will not encounter with an electric one. ow to use your combi boiler eciently Advanced settings You can change the central heating flow temperature and hot water temperature of your heating system. Forum Member. If you have a combi boiler , your hot water is fed by mains pressure, so if you’ve been getting cold water through the hot taps, you can rule out a water … There are many high-quality combi boilers available and good bargains to find so if your boiler keeps suffering from an unbalanced temperature, why not just upgrade to a new model? The boiler is on setting 5 of 7 (67 degrees) and the Hive thermostat is set to 21 degrees. Hotter water might make the room heat up faster, but the eventual temperature will be the same. Trading address is 100 Thornes Lane, Wakefield, WF2 7QX. The hot water temperature control could be part of a digital readout or a knob on the front of the boiler unit. 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