Installation and Repair for a Water Heater | Knoxville, TN

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Water heating is extremely vital in any home and is the second largest energy expense in most houses. Water heater repair is, therefore, absolutely essential. We’re a company using cutting-edge technology to help our clients when it comes to water heater repair.

Our plumbers in Knoxville, TN are qualified to render water heater repairservices. Our goal is to be the most faithful, loyal, reliable and dutiful plumbers in offering water heater repair services in and around Knoxville, TN. The process of water heater repair is subdivided into three major steps; planning and preparation, removing the old water heater and installing the new water heater.

Planning and Preparation

If the existing water heater has lasted long or begins to leak from the bottom, we provide an emergency 24/7 service using the call line 865-622-4101 in Knoxville, TN. A highly trained plumber will come to assess the problem and find out the kind of water heater repair that’s needed. The fuel source (gas or electric) and size of the water heater will also be determined. The plumber will then be back to gather all the needed tools and materials including the new water heater.

Removing the Old Water Heater

Turn Off the Water and Gas or Electricity

If it’s a gas water heater, the gas supply will be switched off by turning the gas shutoff valve by hand or using an adjustable wrench. If it’s an electric water heater, the circuit breaker on the water heater’s circuit will be turned off at the home’s breaker box. The cold water pipe leading into the water heater will also be turned off.

Drain the Old Tank

The water heater tank will then be drained by attaching a garden hose to the drain valve near the bottom of the water heater. A hot water faucet will also be opened to prevent pressure in the line that can slow the draining. The water will be allowed to runoff into a nearby bucket.

Disjoin the Water Heater

The gas and water lines will be disconnected once the tank has been drained. If it’s a gas water heater, the gas line to the water heater will be disconnected. Two pipe wrenches are used to disconnect the gas line at the union or flare fitting. If it’s an electric water heater, the wiring connections of the cold and hot water lines and the circuit cable from the water heater will be disconnected by using a tubing cutter or a hacksaw.

Discard the Water Heater

After full disconnection of the old water heater, it will then be removed, discarded and disposed of legally and safely in accordance to the state law provided in Knoxville, TN. The floor where the old water heater was located will be cleaned up.

Installing the New Water Heater

Place the New Water Heater

The new heater will be moved into position, lining up the existing plumbing with the water heater’s plumbing connections. A carpenter’s level is used to ensure the new water heater is sitting straight. Wooden shims may also be used to adjust the level.

Fix the Relief Valve and Other Fittings

The Temperature and pressure relief valve (TPR valve) installed. A couple of layers of Teflon tape will be wrapped around the threads of the new temperature and pressure relief valve (TPR). A pipe wrench or pliers will also be used to screw the temperature and pressure relief (TPR) valve into place.

Attach the Hot and Cold Water Lines

The pipe assembled will then be attached (Two six inch lengths of 0.75inch [1.9cm] representing the cold water input and hot water output). A Teflon tape will also be used to attach a new adapter to the cold water input and hot water output at the top of the tank. The hot and cold water lines are connected and the two edges of the pipe are soldered together.

Reassemble the Vent

The vent is then reattached by seizing the vent pipe and positioning it directly above the draft hood on the water heater. Sheet metal screws (1.0cm) are used to firmly secure it.

Join the Gas or Electricity

The gas or electrical sources are then connected. If it’s an electrical water heater, the circuit wires are connected to the water heater leading into the electrical junction box on the heater unit. Flexible metal cable or conduit houses the circuit wiring connecting into the water heater. If it’s a gas water heater, the gas line is connected to the gas burner control valve. Flexible gas lines are normally used.

Test for Leaks

Leaks can be checked by turning on the gas supply valve and soaking a soapy water solution onto the gas union and all gas joints. Formation of soap bubbles on the surface of the sponge indications the connection is leaking and hence further tightening by the professional plumber. All the joints are safe to use if no bubbles are formed.

Replenish the Tank

The tank is then refilled by turning on the main water supply and cold water supply. The cold water supply valve to the water heater and the water supply valve are turned on. A hot water faucet in a remote bathroom is also turned on and if water comes out, the tank is filled.

Switch the Power Back on and Set the Water Temperatures

Power to the water heater circuit is restored for an electric heater. For a gas heater, the main gas valve is opened and the confirmation of the pilot igniter is done in accordance with the manufacturer’s instructions. The thermostat is then set on (between 110 & 125 degrees F)


Our highly advanced, innovative and pioneering water heater repairs are awfully productive and provide instant solutions. The water heater repairs are exceptional and durable for Knoxville, TN and its surrounding communities using the state-of-art technology. We are a team of qualified experts ready to help you work on your water heater repair at any time. If you need a professional to have a look at your water heater repair, then do not hesitate to get in touch with My Professional Plumber.