Thermal expansion tanks provide a safe place for expanded water to go. Most water meters are installed with backflow prevention devices that can create a closed system. Pipes in your home may burst unless there is someplace for this expanded water to go.

NO ! All Seabridge walk-in baths have been designed to function with an existing 40 gallon hot water heater which is the most common size. Seabridge has never had to upgrade a 40 gallon hot water tank to fill any of our bath models. Claims that you will have to get a larger water heater are made by other companies that are typically manufacturers of small outward swing door walk-in baths. These claims are fabricated and untrue regarding required replacement of hot water heaters.

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.

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

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.

Run water from a "Hot" faucet to check the temperature of the water. If the water is cold, proceed to step #4. If the water from the "Hot" faucet is still hot, (with the breaker for the heater still "OFF") run water from a "Hot" faucet, until it turns cool. After the water from the "Hot" faucet runs cool or cold, shut off the water supply or close the valve on the "cold" line above the heater.

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.

A hot water heater blanket can be purchased at hardware or home supply store. It is typically made of fiberglass adhered to a plastic sheet. The blanket is wrapped around a hot water heater and prevents energy from escaping through the sides of the tank. This increases the efficiency of the hot water heater. Use of a hot water heater blanket is often one of the most cost-effective means of increasing energy efficiency in a home.

Consider both safety and energy conservation when selecting the temperature for your hot water heater. Typically, households maintaining a setting somewhere between 125 degrees fahrenheit and 140 degrees fahrenheit. At a temperature of 130 degrees fahrenheit, water can cause scalding in about 30 seconds. If your home includes small children, disabled or elderly persons, a setting of 120 degrees fahrenheit or lower may make sense.

Although the City does not deal directly with hot water heaters, they are a major cause of water quality complaints. Heating water will naturally make water more aggressive or corrosive. Maintaining a water heater once a year will eliminate many water quality problems.

A standard closed loop expansion tank requires draining at the beginning of each heating season. A diaphragm expansion tank requires no maintenance. Follow manufacturer's instructions.

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.

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.

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

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.

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

the lineal thermal expansion rate of PB pipe is approximately 13mm for every 10°C temperature change for each 10 metres of pipe, care must be taken with the installation to allow for this potential movement of the pipe. PB pipe should not be pulled tight between fixed points as this will prohibit movement if the pipe contracts, and result in excessive tensile forces on joints and fittings. Allow 10mm slack per metre of pipe. Expansion can usually be accommodated by the pipe's flexibility.