What should the temperature be on the side of a boiler?
If you have a conventional boiler system, your water cylinder will have its own thermostat. This is usually fitted on the side of the tank. You should set the temperature between 60 and 65 °C but for maximum efficiency, it should be set to around 60 °C.
What temperature should I Set my central heating and hot water?
The simple answer is setting your central heating to a temperature of around 70C and your hot water to 60C is the right answer, but why, you might ask? It all comes down to the way that condensing boilers work. With a traditional boiler, fuel is burned to heat your water but a large portion of this is lost out of the flue.
How do I set the temperature on my combi boiler?
You will need to press the buttons up or down to set the flow temperature you want. You might have to check the combi boiler manual if you are struggling. The standard for what temperature should hot water should be set at is around 60 °C. If this is not hot enough, then turn the hot water temperature up, too hot? Turn it down.
What is the dew point of condensing boiler?
For the condensing boiler to operate at maximum efficiency, the secondary heat exchanger’s surface needs to be equal to or below the dew point temperature of the fuel used. This is the temperature at which water droplets form. For natural gas boilers, the dew point is around 55C.
What temperature should a condensing boiler be set at in winter?
Like in winter, if you want to know what temperature should a condensing boiler be set at, make sure it's no lower than 65°C. This inhibits the growth of harmful bacteria in your water supply, so keep it at 65°C and no lower.
What temperature should I run my condensing boiler at?
So, what is the best temperature to set a condensing boiler? The answer is to set your central heating temperature to around 70C, and your hot water to 60C.
How do you run a condensing boiler efficiently?
To maximise the efficiency of your domestic condensing boiler is very simple, turn the flow temperature down. This doesn't mean that it releases less energy overall to heat the property, but rather can use less gas to release the same amount of energy.
What is the best boiler temperature setting?
As a rule, setting your heating control to 75 degrees should be sufficient to give you a perfectly warm house, while also allowing your boiler to run as economically as possible. Once this is set, you shouldn't need to adjust it.
Is 50 degrees hot enough for hot water?
The ideal temperature for domestic hot water is 120 degrees Fahrenheit, or 49 degrees Celsius, to avoid the possibility of scalding.
Does turning boiler temperature down save money?
Even if you have your heating on for most of the day, lowering the flow temperature will still help reduce your energy bills as you will be having lower temperatures for longer periods.
What temperature should a Worcester Bosch condensing boiler be set at?
During the winter, the ideal temperature setting should be 18-21 degrees. In areas that get extremely cold, then 21-23 degrees would be sufficient. If you have taken additional measures to retain heat such as wall insulation or draught-proofed windows and doors, then you could set your thermostat to 17 degrees.
Should radiators be too hot to touch?
A too-hot radiator can also damage furniture, if the furniture is pressed up against it and while not an out and out fire hazard, flammable materials coming into contact with something very hot is not worth risking and is best avoided.
What is the normal boiler temperature?
Recommended Temperature Settings Typical low-temperature settings should be within the range of 120-160 degrees Fahrenheit and high-temperature settings should be within the 180-200 degree Fahrenheit range. If you need the temperature to be warm, try to stay around 200 degrees at the highest.
What should the flow and return temperatures for condensing boilers?
Condensing mode requires a return temperature of 54°C or lower. So maximum system temperatures of 70°C supply and 50°C return are preferable or, to condense continuously, 50°C supply and 30°C return.
What temperature should hot water be set at combi boiler UK?
°C and 60 °CFor combi boilers, the recommended output temperature for the radiators is 75 °C and for the water is between 50 °C and 60 °C.
What should the flow and return temperatures for condensing boilers?
Condensing mode requires a return temperature of 54°C or lower. So maximum system temperatures of 70°C supply and 50°C return are preferable or, to condense continuously, 50°C supply and 30°C return.
What temperature should a Worcester Bosch condensing boiler be set at?
During the winter, the ideal temperature setting should be 18-21 degrees. In areas that get extremely cold, then 21-23 degrees would be sufficient. If you have taken additional measures to retain heat such as wall insulation or draught-proofed windows and doors, then you could set your thermostat to 17 degrees.
What temperature should hot water be set at combi boiler UK?
°C and 60 °CFor combi boilers, the recommended output temperature for the radiators is 75 °C and for the water is between 50 °C and 60 °C.
Should radiators be too hot to touch?
A too-hot radiator can also damage furniture, if the furniture is pressed up against it and while not an out and out fire hazard, flammable materials coming into contact with something very hot is not worth risking and is best avoided.
What temperature should a boiler be set at?
For combi boilers, the recommended output temperature for the radiators is 75 °C and for the water is between 50 °C and 60 °C. You shouldn’t need to adjust these output temperatures as you may alter the boiler’s efficiency. Please note that for best efficiency with Viessmann boilers we would recommend weather compensation , this automatically adjusts the heating boiler flow temperature to the optimum temperature to external weather conditions.
What is the maximum temperature for a boiler?
The maximum temperature that we recommend you set your radiator output to is 80 °C. If you have a conventional boiler system, your water cylinder will have its own thermostat.
What controls do you need for a heating system?
You might have a room thermostat, radiator controls, a boiler thermostat and a water cylinder thermostat.
How to set temperature on a Viessmann boiler?
There are two temperatures that you’re able to select on your Viessmann boiler. One is the temperature of the water that flows through the radiators and the other is the temperature of the water that comes out of your taps. To alter the radiator output temperature:
How to control heat in a radiator?
Another way to control your heating is via thermostatic radiator valves (TRVs). A TRV will control the flow of water that passes through the radiator to change the amount of heat that it gives off. The TRV on each radiator should be set to number three, which will provide a room temperature of around 20 °C.
What temperature should the thermostat be for a water heater?
Your room thermostat should be set to around 18 to 21 °C. This is the most comfortable ...
How hot should water be in a boiler?
If you have a conventional boiler system, your water cylinder will have its own thermostat. This is usually fitted on the side of the tank. You should set the temperature between 60 and 65 °C but for maximum efficiency, it should be set to around 60 °C. Do not set it lower than this as you could increase the risk of contracting Legionnaires’ disease. Legionnaires’ is a form of pneumonia that’s caused by bacteria in water. If the temperature of the water in your cylinder isn’t hot enough, the bacteria that causes the disease, Legionella pneumophila, can grow and you may be at risk. It’s worth noting that the temperature of the tap water should always be lower than the radiator output temperature.
What temperature should a condensing boiler be?
In summary, for optimal operation, condensing boiler systems need the return water temperatures well below the dew point of the boiler exhaust (for natural gas, this is around 140°F in the Bay Area and 125°F in Denver), ideally around 80°F or lower.
What temperature should a boiler return water?
For condensing boilers, you need a return water temperature of 80°F or lower in order to achieve 97% efficiency. (Look at the efficiency curves from any common condensing boiler manufacturer to see this.) Put another way, you start gaining efficiency only when your return water temperature is approximately 135°F or lower.
What is AFUE in boilers?
AFUE is annual heat output divided by annual energy consumed by the boiler. This metric results from a laboratory test that considers the seasonal variations of part-load operation, on/off cycling, and stand-by losses. The full methodology for estimating AFUE for boilers and furnaces is outlined in ASHRAE Standard 103, which applies only to residential and light commercial boilers with inputs under 300,000 Btu/h. The boilers listed in the mechanical schedule are rated at an input of 2,000,000 Btu/h, and in accordance with AHRI Standard 1500, their specifications refer to thermal efficiency or combustion efficiency, not AFUE. The mechanical schedule was perhaps copied from another project with smaller boilers that did have AFUE.
What is the efficiency of a Lochinvar boiler?
We checked other condensing boiler models sold by Lochinvar, which did have efficiency curves for a 30°F rise, and they showed boiler efficiency to be approximately 93% at an EWT of 110°F. Therefore, we recommended that the design team either revise the boiler efficiency to 93% or adjusting the system to return a lower EWT.
Why should the return water temperature be low in a condensing boiler?
In a condensing boiler system, however, the return water temperature should be kept low in order to condense the water vapor and capture the latent heat from the boiler exhaust. The heat exchangers of condensing boilers are designed and manufactured for this.
What is the temperature of the return water on a VAV box?
Also, be careful of the approach temperature. (In a commercial building application, this would be the delta-T between the leaving air temperature from the VAV box and the return water temperature off the coil.) You will not get an 85°F leaving air temperature if your return water temperature is 60°F. (It would likely need to be 90 or 95°F to achieve an 85°F return water temperature.)
What temperature should hot water coils be?
Most coils are sized for a 20°F delta-T, but to get optimal return water temperatures, they may need to be sized for a 40°F delta-T. This requires extra coordination between the design engineer and the equipment supplier.
