Breakdowns on a well-maintained HVAC system do not occur often. Regular maintenance of HVAC units is a must. On this page, you can see how to do that once in a while. Otherwise, make sure you have a good and reliable repairer or HVAC contractor.

The heating and cooling system in your living space is undoubtedly one of the most significant investments. Devices and parts within this system, especially if you install quality units, are built to last. Still, problems may occur due to the device’s age or unexpected failures.

The average lifespan of a water heater is about ten years. If the unit is that old and breaks down frequently, it’s time to replace it. Complex repairs to older water heaters do not pay off. Installing a new tank is not too complicated, so you can do it yourself if you have any sense of DIY jobs.

Examine Old Water Tank before Replacement

When it’s time for hot water tank replacement, it is best to buy the same model as the one you plan to replace. Yet, if you have an old model, they are probably no longer on sale. Study the specification of your water tank and see who the manufacturer is. Contact them and inquire about the current offer of these devices.

The easiest way is to buy a heating unit that uses the same fuel as the old water heater. Within the HVAC system, these are most often gas or electricity. As for the size of a tank, choose a model that matches the volume of the unit you are replacing. 

If you want to replace the old hot water tank with a larger unit because the household needs have increased, first check if it is feasible to install it. Consult the manufacturer or HVAC contractor if the installation needs to be changed.

Safety Is Priority

When working with appliances that use electricity, be sure to wear protective equipment. Use rubber or latex gloves as these two materials are proven insulators. Also, don’t forget to secure a place to work before you start.

When you change the electric water heater, it means that you switch off the power supply first. If you have a unit that uses gas, turn off the shutoff valve nearest to the tank. Then, shut off the valves on both the house and supply side. The difference between a gas and electric hot water tanks can be found online.  

Make sure that the tank is empty when you do this. Attach the hose to the drain valve on the appliance, and on the other side, open the nearest tap. It will help you drain the boiler faster.

Finally, you need to uninstall the old heater. If you are sure the supply is off, disconnect both cold and hot water lines in the tank. With electric water tanks, use voltage-testers to check if the power supply is interrupted. If two wires touch each other even by the millimeter, that can be dangerous.

Follow the Manual

Since water heaters are quite bulky devices, you probably need help replacing the old tank and connecting a new one. Your assistant should also wear protective equipment, even if they are just holding the tools.

Follow the manufacturer’s instructions, even if you replace the old heater with the same model of the device. Install all drains and add-ons that come with the new tank. When finished, check once again that everything is tight before connecting the boiler to the HVAC system.

Then, connect the pipes for cold and hot water. You can try flexible connections if some of these installations do not fit the plumbing system in your home. If you still need to make changes to the piping system, leave that job to a professional plumber.

Finally, connect the heater to the fuel supply. In the case of units that use gas, do not forget to attach the vent. On this source, find out why a vent pipe is necessary for gas heaters.

In order for the new heater to last as long as possible, it is advisable to empty it at least twice a year. Take the chance and clean lime scale deposits then. Regular maintenance will surely extend the life of this device, and bring you long-term savings.

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