boiler hot water temperature setting

Your combi boiler’s ideal temperature for central heating

First and foremost, locate the two dials and the digital display on the front of your combi boiler. These control the output temperature for the radiators and the hot water temperature. To maximise efficiency, we recommend setting your radiator dial to 75 degrees and your hot water to 60 degrees.

Vaillant Boiler temperature settings | DIYnot Forums

If the boiler is heating hot water then it will need to be set at least 5-6° above the target hot water temperature which is ideally set to 55° making the boiler need to be at least 60°. Of course it could be that you have a control which already raises the boiler temperature just for hot water.

Hot Water Boiler High/Low temp settings -

Boiler is a Kerr Comet 145 Oil Fired hot water boiler. I currently have the High and Low temp settings in the aquastat set at ~150'F on each. This kicks the boiler out at about 180'F. Haven't been able to catch when it comes on though. Run time is ~5 minutes when it does turn on to bring it up to temp.

How hot should my water and radiators be ? | AVForums

Jan 27, 2009 · Now on the boiler we can set the temp of water to rads from between 38 and 82 degrees. I get confused as to how high it should be set and also if there is a optimum setting regards getting the most value for money (gas bill wise) out of the heating. The thing with the tap water is fine and easy to work out.

Hot water system temperatures and the code - PHCP Pros

The model plumbing codes do not address a maximum storage temperature. For combined heating hot water and domestic hot water systems, when the heating hot water system exceeds 140°F the IPC code requires a temperature actuated mixing valve conforming to ASSE 1017 to limit the domestic hot water temperature to a maximum of 140°F.

hi\lo settings for oil fired boiler — Heating Help: The Wall

If you still have lots of hot water, lower it another 10. The lower the better, but you have to have hot water. Also note that the 2 settings need to be at least 20 degrees apart. The lower setting is the temp the boiler stays at when the heat isn't calling. The upper limit is the temp the boiler tries to get to when there is a call for heat.

What temp do you run your boiler at? -

For hot water set the combi or cylinder to 60 centigrade, this is not only for achieving optimum hot water quantity it is also to kill off any bugs that occur naturally in water systems.

Temperature Setting for Domestic hot water Boiler??? | Hearth

My boiler was set to fire up to 180 deg and since it is a cold start would only come on if heat was called for. Just using DHW in the summer always keeps the temperature high enough to prevent condensation.

Hot water system temperatures and the code - PHCP Pros

There have been people claiming the maximum allowable storage temperature or thermostat setting on a water heater is 120°F). There is no such requirement in any model plumbing code. There have been claims the maximum temperature is 125°F based on the scalding temperature labels on the outside of most water heaters.

Combi boiler water temperature setting | DIYnot Forums

I set the water temperature at 45 degree but it going up to 60 or even higher when I turn on hot water. Please can any one give me some advice, is this normal because this is first time I using Combi boiler, before I was using conventional boiler. Thank you.

Recommended temperature settings for hot water heaters

Although manufacturer's usually set water heaters at 60C, you can reduce your carbon footprint and save money by adjusting your boiler's hot water thermostat. Each four degree reduction in water temperature could save you around three to five per cent in energy costs.

How to adjust the temperature of your water heater - CNET

No one likes a cold shower. Even worse is getting scalded when you run the hot water. Properly setting the temperature on your water heater is important not only for your health and safety, but

AquaSmart Boiler Temperature Control | Beckett Corp.

Single Acting Boiler Temperature Control. The low limit setting is the minimum temperature the boiler can attain. When the low limit set point is reached the burner turns on. The low limit differential setting is approximately 10° higher than the low limit setting. When the low limit differential set point is reached.

Adjusting the hot water temp on my combi boiler | DIY Doctor

Mar 19, 2008 · hi all does any one know if it is possible to adjust the hot water temp on my combi boiler and if so how. the model is a Ideal c80ff since boiler being installed iv`e never had piping hot water, if i turn the tap on fast the water never gets hot only luke wam to get the water somthing like hot i have to slow the tap down to almost a trickle

Aquastat settings: Best High, Low, & DIFF Settings on a

At the setting shown, if LO were set to 120, when the burner is re-heating the boiler water and water temperature rises to 130 F the burner will turn off and the heating circulator pumps will be allowed to turn on (and they will actually turn on if the room thermostat is calling for heat).

Correct temperature setting for hot water heat/furnace

Sep 23, 2012 · Correct temperature setting for hot water heat/furnace. I have a 2 zone Burham hot water heating system. It is currently set for 180 degrees F, but I notice there is a lot of short cycling. On very cold days the burner will turn on until the water heats up. After that, the zones will cycle the furnace off and on very rapidly- - usually

How to Adjust the Water Temperature of a Hot Water Boiler

Hold a cooking thermometer in the water and take a temperature reading. The water should be a minimum of 120 degrees Fahrenheit. If it is less, adjust your hot water boiler upwards. If the temperature is well above 120 degrees, you can safely adjust your hot water heater downward slightly before testing again to be sure you maintain the recommended minimum temperature at the tap.

Worcester Bosch Boiler Controls Explained - Hassle Free Boilers

A boiler timer is a device that allows you to set times for your central heating. A programmer allows you to set different times, and temperature for heating and hot water. Note that old or defective boiler controls are a waste of energy and finances. Room Thermostats. A room thermostat allows you to set the ideal temperature for a room.

Boiler Temperature Setting - Boilers & Hot Water Tanks

Dec 07, 2017 · For instance, I run my boiler at a temperature dependent upon demand, so my boiler temp tends to vary from anywhere between 40 degrees and 70 degrees (when recharging the cylinder). So most of the time I would have a return temp below 56 degrees (probably more like 30), but at the same time the flow would be at a lowish temp.

What are the Safest Temperature Settings for a Hot Water Heater?

Nov 28, 2019 · Very hot water temperature can cause burns with great rapidity, and as such, care in setting your hot water heater is required. Setting the hot water temperature lower also means a savings in energy bills for heating the home's water in many cases.

Outdoor Temperature Reset - tekmar control s

Outdoor Temperature Reset In order to properly control a hot water heating system, the heat supplied to a building must equal the heat loss from the building. The heat loss is dependent on the outdoor temperature. It is therefore necessary to reset the supply water temperature based on the outdoor temperature.

What's the Best Temperature for My Water Heater? - Lifehacker

Having said that, if you don’t live with anyone who fits into the categories above, 120 degrees Fahrenheit is probably the best temperature setting for your hot water heater.

What Temperature Should a Hot Water Heater Be Set At?

Factors That Affect Hot Water Temperature Setting. Elderly homeowners or those with small children may want to keep the temperature at 120 degrees. According to, “It takes just two seconds for a child to receive third-degree burns from water that is 150 degrees and five seconds if it is 140 degrees,

Problem: new combi boiler hot water temperature fluctuation

The boiler holds a head of hot water when you open the tap or shower this hot water is pushed out by the cold mains pressure. The boiler will cut in when the cold mains has dropped the boiler temperature to its switch on point.

Advice on Boiler Temperature Settings – Combico Heating

Oct 12, 2015 · Advice on Boiler Temperature Settings. For a modern condensing boiler, the return flow to the boiler must be below 55 degrees C for heat recovery by condensation to take place. If the return temperature exceeds this, the whole purpose behind installing a condensing boiler, and the benefit of reclaiming latent heat from the flue gases,

Problem: new combi boiler hot water temperature fluctuation

Jitender, my hot water boiler is a the gas boiler module of a Daikin Altherma hybrid heat pump. This is a condensing boiler with a domestic hot water heat output of 7.6-32.7kW. Supplying hot water has priority over heating. Since the system is tankless, the heat pump is not involved in domestic hot water production, only in Central Heating.

Hot Water Temp Setting?-Oil Burner - Forum - Bob Vila

But, when the oil burner kicks on to heat the house, naturally, the hot water temp goes way above that, due to the burner heating the water that is flowing through the baseboard heat to the

What Is The BEST Water Heater Temperature Setting?

Jul 31, 2018 · How to Set Temperature on a Gas Water Heater Gas water heaters have a setting knob that can be turned to adjust the temperature. Turning the knob towards the “HOT” or “VERY HOT” setting moves closer to 140 degrees. The “Vacation” setting does not heat water, but keeps the pilot light ignited.

Boiler Temperature Setting - Boilers & Hot Water Tanks

Dec 07, 2017 · The annoying thing was that the guys that fitted our boiler recommended that we run it at much higher temperatures - not sure why, but they left it with the heating set to 75 deg C and the hot water set to 65 deg C, both a lot hotter than needed and those temperatures meant the thing was never condensing in heating mode at all.

What are the Safest Temperature Settings for a Hot Water Heater?

Nov 28, 2019 · Setting the hot water temperature lower also means a savings in energy bills for heating the home's water in many cases. However, a lower temperature does mean you will run out of hot water more quickly. Most experts recommend that hot water temperature should not exceed 125° F (51.66° C). A water temperature exceeding this poses serious risk of bad burns, particularly to children.

Ideal water temperature for baseboard heat

If you use a heat-purging boiler control such as the Intellicon 3250 or it's cousin the Beckett Heat manager, the savings are similar to using "outdoor reset" type controls on a high-mass cast iron boiler, in part because the average temp of the water is lower, and the boiler is "parked" at a lower temp during standby, for lower standby losses.

What is the Most Efficient Temperature to Keep the Boiler At?

May 28, 2013 · Boiler thermostats set the temperature of the water that will be pumped to the radiators. The higher this is set, the more energy will be used and the hotter your radiators will become. As long as you have room thermostats, you can set the boiler thermostat reasonably high to make sure that enough heat is generated.

Water Boiler Temperature settings and circulator

The LOW setting is the temperature that the boiler will keep itself warm at. This keeping warm is normally used for domestic hot water production. The DIFF setting works ONLY with the LOW setting, and 20-25 is a good number for that. Normally, the HIGH is going to be 180°F.

Boiler Temperature Set Points For Residential Baseboard Water

Feb 03, 2019 · I set the on temp around 180 degrees and it shuts down whenever the thermostat clicks off. The boiler easily keeps up even when the temps are down around -35 to -40 outside. The gauge shows around that 180 degrees. For its age, the old boiler seems to be very efficient as my normal heating bill in Winter runs around $40 a month.

What are the proper temperature settings for my boiler

The average setting for the aquastat (the temperature control device on a boiler) for a forced hot water system is 180 degreesF. It can be raised as high as 210 degreesF if needed in severe weather. For systems that use coils to heat domestic hot water, the high limit setting is 210 degreesF and the low limit setting 140 degreesF.

What Temperature Should a Hot Water Heater Be Set At?

What Temperature Should a Hot Water Heater Be Set At? Your water heater accounts for about 18 percent of your home’s energy bill. If your water heater is set too high, you will be paying the price in your energy bill each month.

What are the High-Low water temp. settings for an EFM 135,000

Nov 24, 2007 · I have an EFM oil fired hot water boiler for heating and domestic water. I was wondering about the settings for temp. control, about lowering it and to what temps to go to. It is set at 190 for the HIGH and 160 for the low.

How to Adjust the Water Temperature of a Hot Water Boiler

Test your tap water temperature. Allow the water to run until it is fully hot and fill up a tall glass. Hold a cooking thermometer in the water and take a temperature reading. The water should be a minimum of 120 degrees Fahrenheit. If it is less, adjust your hot water boiler upwards.

How to Set Hot Water or Steam Heating System Pressure

The ending or "hot water" temperature at the boiler - typically 180 deg F to 210 deg F, controlled by the heating boiler's combination control, aquastat, or limit control - see AQUASTAT CONTROL FUNCTIONS and see LIMIT CONTROL, SINGLE.