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Over heating and using water - Water Heaters

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Thermostat faulty causing pressure relief valve to open. Could even be gas valve.... get an engineer in there quick.

Posted on Dec 03, 2014

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Posted on Jan 02, 2017

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What is best temperature setting for water heate


120°-125F is safest temperature.
Typical bath-shower is 104-110°F but rarely higher.
130°F can burn the skin in about 1 minute
Serious burns occur in seconds with 140°F and higher.
Use a cooking thermometer to check temperature coming out of tap ... if hot is slow to arrive and never seems to arrive, make sure all single handle faucet cartridges are up to date.
Following link has additional safety tips:
http://waterheatertimer.org/Water-heater-safety-precautions.html

Oct 20, 2017 | Water Water Heaters

1 Answer

How to use Central Heating only on an IDEAL W2000 CF50 boiler


you should have a programmer that will let you have the hot water and heating on or off . You could have a motor rised valve on the system which controls both . depends on what system you have . Fully pumped of just pumped on the heating side .

Jun 14, 2017 | Water Heaters

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A local contractor is selling a new PS19T. Why was it discontinued? I'm looking to heat my workshop infloor heat system. should I be wary?? thanks for any help. jeff


This model is known to have problems with its Thermal Cutout this regulates the maximum water temp and can cause the unit to overheat when it does not shut off the heat source. In some residences low water flow and or a obstruction (common if you have well water) in the filtration and water treatment system can cause the same problem. Basically the unit can have overheating problems and the heat exchange coils are be prone the effects of hard water (if that applies to your water supply) and can lead to future service of descaling the units coil/coils (can be expensive). Buying any used unit with many mechanical parts and other components always have the potential to have problems new so i would not recommend a used unit of this type.

Also, This unit is limited due to the fact that the unit require­­­ incoming water to be cold and you cant use any sources of pre heated water (many people are starting to utilize alternative energies such as solar water heaters, wood boilers, and other relatively free or low cost). For example, using recovered heat from a boiler or indirect hot water tank or other to reduce the energy (cost) by raising the systems initial water temperature.

Are you heating a concrete floor with radiant heating? if so it would be far more cost effective to use either a loop off your existing system (a new zone) or you could add a oil fired or LP (gas) fired water heater and utilize the efficiency of a separate system and the fact that a hot water heater stores and super insulates the water it heats.



if you have any questions please feel free to let me know

Feb 06, 2011 | Bosch PowerStar AE115 Tankless Water...

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How does an electrial water heater work


it uses resistive heating elements that are encased in an electrical insulation and then covered with metal, like the cooking elements in a stove, or on a cooktop range. when electricity flows through them they heat up and get hot (like a light bulb filament wire glows) When the water reaches a certain temperature set on the thermostat, it opens the electricity,turns it off to the element until the water cools down past whatever temperature it is set at, and then it turns back on. That is why if too many people take a shower you will run out of hot water because cold water is always flowing through the water heater and when all the hot water is used, you have to wait for the heating elements to heat the water back up. To make sure it heats up quickly make sure all the HOT water faucets are off so that water isn't flowing through it and is just sitting there heating up. All work on the same principle.

Nov 09, 2009 | Electra 11-1/2" Water Heater

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Takes a long time to heat water. Brand new Ge 50 gallon water heater. Once heated it right temp,just a long time to heat it and then won't maintain hot water. Is gas line to small? 3/8 copper line. Thanks


If you are using a 3/8" copper line for your gas, get it replaced ASAP. It will fail. 1/2" Black Iron is required with natural gas. 50 gallons is a lot of water to heat. Look on the heater label for the recovery rate.

Feb 27, 2009 | Bosch 1600H-NG Natural Gas AquaStar...

2 Answers

On-Demand Water Heater


An on-demand, or tankless, water heater is a system for heating water as it passes through the pipes, usually very near the point of use. Traditional tank water heaters bring the water to approximately 140 degrees Fahrenheit (60 C), in order to ensure the water supply lasts long after the heater turns off. Since this is obviously far too hot to be pumped out of a shower of faucet, cold water is added to the mix in the pipes. Coupled with the loss of thermal energy over time, the average tank heater has an efficiency of approximately 80%. On-demand water heaters have a number of advantages over their tank-using counterparts. While tanks often degrade over time and begin leaking, the apparatus used in an on-demand water heater is much less susceptible to the burdens of age, and will often outlive the house they're installed in. The amount of energy used is a fraction of that used in a tank water heater, due to increased efficiency and a much smaller window during which a heating source is in use. While tank hot water heaters can, and often do, run out of hot water after a number of showers, on-demand heaters provide a never-ending supply of hot water, ensuring that warm water is always available when needed. A tankless water heater can cost between $500 and $1500, and they most commonly use either electric or natural gas energy to heat the water. Most mid-sized households report an energy savings of approximately 25-45% for a gas or propane heater, and up to 50% with an electric heater, over using traditional tank heaters. Water is usually set to a maximum temperature of 120 degrees Fahrenheit (49 C), though many heaters allow for custom setting of the maximum temperature via remote control. Outflow rates range from 8-14 gallons (30-53 litres) per minute. Installation for most tankless water heaters is incredibly easy, involving simple plumbing. In the case of electric heaters, all that is required for a fuel source is to plug the heater into an outlet and begin heating your water. Some modern on-demand water heaters can incorporate a solar preheating system. This system uses a traditional solar heating system and tank to bring the water nearer to the desired temperature, saving substantial energy use in the final on-demand heating. A solar preheating system costs between $500 and $800.

Aug 27, 2008 | Stiebel Eltron CK20E Electric Tankless...

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