A chilled water system is filled with water at a temperature between 50 and 60?F. When the chiller is turned on, the temperature of the water drops to 45?F. When the water contracts, the system pressure drops, and the fill valve allows more water to enter the system to maintain the system pressure. If the chiller shuts down and the water in the system warms up to room temperature, the rise in temperature from 45? to ambient will cause the water in the system to expand.

The tankless water heater doesn't hold any hot water. Water flows through a sensor, then turns on the burner. See similar questions...

No. The boiler supplies all of your normal domestic hot water needs. It produces 130 gallons of hot water per hour on demand. See similar questions...

This is one of those things that seems difficult, but is actually very easy. First you need a source of water; either hook up to the city water connection or fill the on board water tanks and turn on the pump. Now comes the hard part, just open the hot water faucet. The water entering from the water source you selected will displace the air in the HWH and begin to fill. At first air will be expelled from the faucet, then it will spurt water and finally a full stream of water. See similar questions...

there are several manufacturers of hot water heaters (HWH), read and understand you owners manual. The first thing I want to say is when lighting the HWH it takes a LONG time holding down the pilot button to get gas flow all the way to the HWH. Turn the HWH gas valve knob to the "Pilot" position, then push this knob in. Gas will NOT flow unless you are holding this down. It is a safety thing. Wait at least 1 minute, usually 2 and gas will begin to flow. Now try to light it. See similar questions...

If all the setting are correct on a boiler the expansion tank should never need to be drained. The tank constantly has water in it so ever if you drain it water will flow back into the tank. To drain the tank, you need to open the relief valve at the bottom of the tank, hook up a tube and drain. See similar questions...

Yes, a permit is required, because as hot water is heated it rapidly expands. Hot water heaters are designed to withstand this pressure, through the addition of safety devices. When a hot water is installed improperly, they have been known to explode. In some cases they were literally propelled through the roof of a single family residence. Prior to installing a new hot water heater, we require a permit to cover the inspection of the replacement. See similar questions...

Customers sometimes report white particles that clog plumbing fixtures. They may be bits of calcium carbonate scale coming from your water heater. The scaling may be worsened because water heater thermostat is too high. If the particles are calcium carbonate, you probably need to flush your water heater. Many manufacturers recommend periodic flushing of water heaters to remove sediment that can build up. See similar questions...

Yes, in order to ensure proper installation and compliance with required codes, a permit is required. See similar questions...

If it is an in-kind replacement, a permit is not required. If however, an electrical appliance is being replaced with a natural gas appliance (or vice versa) then a permit is required. See similar questions...

Yes! The unit has been designed to operate outside. The outer casing of the tank is zincalume based and ColorBond coated. See similar questions...

Solar thermal or solar hot water (sometimes referred to as “solar domestic hot water” or SDHW) is a water heating system that heats water within units called “solar thermal collectors”, either directly with sunlight or by heating a “working fluid”, such as glycol, that then heats the water. These flow to a hot water heater, which is to be used as a storage tank and for back-up heating at night or during the cold months of the year. See similar questions...

Answer: Most of our heaters require a 100 lb. tank or larger unless they state otherwise in the heater description. If you need more information please go to our Propane Vaporization Chart and call your local propane dealer. Answer: Vent free heaters are designed to burn as clean as possible. However, there may be particles in the air from other household materials that when mixed with the combustion air the unit is using, give off the scent of kerosene. Typical odor producing prod. See similar questions...

With tank type water heaters, you can draw water as fast as your plumbing will allow to you; however, when the hot water tank is depleted, you have to wait for the tank to re-heat before you can use hot water again. The tankless water heater will give you endless hot water for as long as you open a faucet. See similar questions...

Tank water heaters store and heat water at all times, thus incurring higher operating costs, whereas tankless water heaters only heat water as needed. In addition, tank heaters have a limited supply of hot water and will run out of hot water while tankless heaters provide an unlimited supply of hot water - you will never run out. Also, the size of a residential tankless heater is about the size of a carry on suitcase and can be installed virtually anywhere inside or outside. See similar questions...

It should be .There will be low heat output and high energy cost. They may be acceptable in intermittently occupied buildings or as a back up only. There will be a prompt payback of the added cost of any other form of energy. See similar questions...

UltraHeat™ offers three types of tank heaters: two 13.5 Volt DC (VDC) powered tank heaters (Model 1200 & 2400); two 120 Volt AC (VAC) powered tank heaters (Model 4200 & 4800) and one combination tank heater powered with both 13.5 Volt DC and 120 Volt AC (Model 3600.) The UltraHeat™ Tank Heaters should be selected based on the liquid capacity of the individual holding tank to be protected, see the table below to help with this selection. See similar questions...

The hot water that comes from the 600 ft. well is about 160? F. If the water were allowed to come to the surface, the temperature would be 135?. See similar questions...

It can be as high as 167?F. The tankless water heaters we distribute have computer-controlled systems, which is pre-set at the factory to deliver 140?F water. This temperature can be regulated up or down by use of a remote temperature controller. In abnormal installations, a domestic hot water mixing valve is recommend. See similar questions...

Most electric water heaters are 40 gallons Imperial (50 US), the suggested size for families of from two to five members. We generally replace them with 33 gallon (40 US) heaters, because gas units have a much faster recovery rate. Approximately one in ten families need more hot water than others, so for about $150 more we install a 40 gallon (50 US) unit. See similar questions...