When it comes to ensuring comfort and convenience at home, it is important to have a reliable water heater, especially in a state like New Jersey, where cold winters can make hot water a true necessity. Whether you’re replacing an old unit or installing a brand-new system, understanding the right process is very important. Although many homeowners choose to hire professional heating services in NJ or trusted HVAC contractors to handle the job, some prefer to explore a DIY installation route.
In this article, we’ll walk you through everything you need to know about how to install a water heater in NJ, from preparation to completion.
Step 1: Choose the Right Water Heater
Before diving into installation, it’s important to select the correct water heater for your home. Consider these key factors:
- Fuel Source: Determine whether you need a gas, electric, or tankless water heater. Many homes in New Jersey are equipped with natural gas lines, but electric models are also common.
- Size: Choose a model based on your household’s hot water needs. A family of four typically requires a 40- to 50-gallon tank.
- Energy Efficiency: Look for energy-efficient models that meet New Jersey’s standards to help reduce monthly utility costs.
- Local Codes and Permits: In NJ, certain municipalities require permits or inspections for water heater installation. Always check your local building codes before starting.
If you’re unsure which model fits your home best, consulting HVAC contractors or heating services in NJ can be extremely helpful.
Step 2: Gather Necessary Tools and Materials
To successfully install a water heater, you’ll need a variety of tools and supplies. Here’s a general list:
- New water heater
- Flexible water supply lines
- Pipe wrench
- Adjustable wrench
- Pipe cutter
- Teflon tape or pipe thread compound
- Soldering torch and materials
- Screwdriver
- Pressure relief valve
- Water heater pan
- Venting materials for gas models
- Safety gear, including gloves, goggles
Make sure everything is ready before you start to avoid mid-project runs to the hardware store.
Step 3: Disconnect and Remove the Old Water Heater
Turn Off Utilities
- Gas Water Heater: Turn off the gas supply valve and extinguish the pilot light.
- Electric Water Heater: Shut off the breaker in your electrical panel that supplies power to the heater.
Drain the Tank
Connect a garden hose to the drain valve at the bottom of the old heater and lead the other end to a floor drain or outdoors. Open the valve and allow the tank to drain completely.
Disconnect Pipes and Power
- Disconnect the water supply lines.
- For gas units, detach the gas line. If it’s an electric model, carefully disconnect the wiring.
- Disconnect the vent pipe on gas units.
Remove the Old Unit
Once all lines and connections are free, carefully remove the old water heater. It’s advisable to have a second person help, as these units can be heavy.
Step 4: Prepare for New Installation
Position the New Heater
Place the new water heater in the same spot where the old one stood. Ensure it is level and properly positioned.
Install the Drain Pan
In New Jersey, especially in areas prone to basement flooding, it’s highly recommended—and sometimes required—to place a drain pan beneath the water heater.
Connect the Water Lines
Attach the new flexible water supply lines to the hot and cold water connections at the top of the unit. Use Teflon tape or pipe thread compound to ensure leak-free connections.
Also Read: What Heating and Cooling System is Best?
Step 5: Hook Up Power or Gas Lines
For Electric Water Heaters:
- Connect the electrical wires according to the manufacturer’s instructions.
- Make sure the connections are tight and properly insulated.
For Gas Water Heaters:
- Connect the gas supply line using pipe joint compound or approved tape for gas lines.
- After connection, perform a leak test using a mixture of dish soap and water. If you see bubbles forming, there’s a leak that must be addressed immediately.
Important: In New Jersey, any gas line work must often be inspected. If you’re not fully confident in this part of the job, it’s best to contact professional HVAC contractors or heating services in NJ to ensure safety.
Step 6: Install the Vent System for Gas Models
Proper venting is critical for gas water heaters to safely expel harmful gases like carbon monoxide. Depending on your model, you may need:
- A new vent hood
- Vent piping
- Proper sealing and securing of joints
Make sure the vent rises at least 12 inches vertically before any horizontal run and maintains a slight upward slope throughout. Again, NJ building codes are strict on venting, so professional advice is often warranted.
Step 7: Attach the Pressure Relief Valve
Install the temperature and pressure relief (T&P) valve, which protects the tank from excessive pressure buildup. Connect a discharge pipe that directs water safely to the floor or a proper drain.
This step is not just important for safety; it’s often a requirement under New Jersey plumbing codes.
Step 8: Fill the Tank and Check for Leaks
- Open the cold water supply valve.
- Open a hot water faucet somewhere in the house to allow air to escape as the tank fills.
- Once the tank is full, check all connections for leaks. Tighten fittings as necessary.
Step 9: Turn On the Power or Gas
For Electric Units:
- Turn the breaker back on and allow the unit time to heat water.
- Avoid turning on the power before the tank is full, as this can burn out the heating elements.
For Gas Units:
- Relight the pilot according to the manufacturer’s instructions.
- Set the thermostat to around 120°F, which is the recommended safe temperature.
Step 10: Final Inspection and Clean-Up
- Make sure all valves are operational and properly labeled.
- Clean up the area, disposing of the old unit according to NJ’s recycling regulations for large appliances.
If you obtained a permit, schedule an inspection with your local New Jersey municipality to ensure the installation meets code.
If you’re looking for expert help with your water heater installation, Alpha HVAC New Jersey is here for you! Our licensed and experienced team offers professional water heater installation services across NJ, ensuring your system is installed safely, efficiently, and up to code.
Contact us to schedule your installation and enjoy reliable hot water all year round!