Water Heater

water heater

If you don’t have boiler system, you will need a separate water heater to provide hot water in your property.

Water heaters are common and less expensive compared to central or boiler systems.

At Fairfax Mechanical, we install, repair and maintain all major brands of water heaters in the market to help you have hot water any time of the year.

Water heater installation

Installation should be done by professional technicians who have the relevant training and experience but you should know about the basics of water heater function as well in order to be able to choose the right water heater. There are many types, sizes and brands in the market that can make choosing a bit difficult for you.

How does a water heater work?

Water heaters are categorized base on fuel source or storage type.

The tank storage type works with gas or electricity but there are hybrid models as well. The tank less water heater works with gas or electricity.

Tank water heaters

When choosing tank water heaters, you should consider capacity which is from 20 to 80 gallons. FHR or first hour rating can help you choose the right water heater because it refers to the amount of hot water used in the first hour of operation which might be morning or evening depending on your work schedule. It is printed on the tank and should be in proportion to your needs.

Tank water heaters have some protective measures which include the temperature and pressure-relief valve or the T & P valve. They open and release water if the temperature of water is too hot or the pressure inside the tank is too high to ensure the water heater doesn’t explode.

The tank is insulated to hold heat for a longer period of time and to prevent heat transfer from water to the metal tank.

Tank Water heaters have a drain valve on the side of the tank to drain the water heater and reduce residue build up which should be done regularly and professionally.

Water heaters also have an anode rod, which is made of a metal that rusts faster than the metal of the tank itself. This anode rod prevents the water heater tank from rusting and should be replaced every 1-2 years.

There is also expansion tank which is a very important safety measure device because as water is heated inside the main tank, its volume and pressure increases and thermal expansion happens which might lead to explosion if not controlled properly! An expansion tank takes off some of this thermal expansion by draining the excess water into a bladder within itself. Expansion tank is a small tank in various sizes which should be proportionate to the size of water heater, water pressure and the temperature of heated water. It is often placed next to water heater or on top of it.

Gas tank water heater:

The process starts with cold water entering into the tank through a dip tube and being heated with a gas burner which releases extremely hot and toxic air up through a chimney in the middle of the tank which moves this toxic air outside while heating the metal of the chimney. As this chimney heats up, the water contained in the tank is heated as well.

Heat increases and hot water rises to the top of the tank to be distributed throughout your property through the heat-out pipe. When you open the tap for hot water, cool water enters again through the dip tube, replacing the hot water and pushing it through the heat-out pipe.

You can set the temperature according to your preference with the thermostat, which is connected to the gas line and flows the right amount of gas to the burner to reach your pre-set temperature.

Electric tank water heater:

An electric water heater works the same as a gas water heater but it is plugged into a power supply because water is heated by electric elements.

Hybrid tank water heater:

The hybrid type of water heaters are energy efficient because they have been engineered to utilize electricity along with a heat pump technology.

A fan at the top of the water heater pulls the air from the surrounding environment into an evaporator. Refrigerant in the evaporator absorbs the heat from air and runs through a compressor which increases the temperature and pressure. The now heated refrigerant passes through the condenser coil located around the tank and transfers the heat to the water.

Essentially the hybrid water heater utilizes heat within your space to heat the water in the tank rather than using only electricity which is smart!

Tank less water heaters

Tank less water heaters are also called on-demand water heaters and run with gas or electricity.

They take less space and are more energy efficient because a coil system heats the water only when you open a tap. They are more expensive than the tank water heaters but instead lower your energy bill which in the long run makes a significant difference. According to department of energy, 18% of energy uses is due to water heaters! In addition, you may also be qualified for rebate!

Well-maintained, the residential models have a life span of 10-15 years and some commercial models last for more than 20 years.

We at Fairfax Mechanical have extensive experience installing all types and brands of water heaters that sincerely offer it to you.

Water heater repair

Water heaters might cause problems when you least expect them like leaving you without hot water in the middle of winter!

We are always prepared to help you with such emergencies. Our qualified staff will inspect the problem and provide you with the most efficient solution so you can have your hot water back immediately!

Water heater maintenance

In order to avoid emergency repairs or replacement, it is smarter to have regular maintenance at pre-set schedule. Not only you are saved from replacement cost, but your water heater works more efficiently causing a decrease in your energy bill.

Thermostat setting, sediment cleansing, anode rod changing and pressure relief valve testing are all done in regular bases before they stop working all together!

We offer preventative maintenance contract that provides our expertise at regular intervals to help you pay less for water heater repairs, replacement and energy bill and also benefit from your water heater’s warranty.

Fairfax Mechanical is your trusted water heater service provider with highly qualified technicians that know everything about water heaters.

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