How to Seal a Leak in a Central Heating System

Having a leak in a central heating system can be a nightmare to resolve. In general, it's not an easy do it yourself job, but if you have a little experience and someone you can call as a back up, you may be able to correct the situation yourself.

What You'll Need
  • Leak stop sealant
  • Phone number for a heating professional
  • Warranty information
Step 1: Check Your Warranty

If your heating system is still under warranty, call and schedule an appointment. Working on a system that is under warranty can void the warranty.

Step 2: Apply the Leak Sealant

A leak sealant will be a liquid seal that is poured in to piping system. You can find liquid sealant that is made specifically for heating systems. You need to be sure to read the instructions provided carefully. Using too little will render the sealant ineffective, and too much can create clogs in the system.

Step 3: Contact a Professional

Very often having a leak in a heating system will require a pipe to be replaced. This can be a messy job. In some cases the flooring needs to be ripped up to create access to the pipe in question. If the sealant doesn't work it's a good idea to have a professional diagnose the system.

How to Replace the Dip Tube on an Electric Water Heater

The electric water heater should be properly maintained and taken care of to maximize its life expectancy and to make sure you have an even, comfortable flow of heat through your water supply taps. In order to make sure you have that even flow of water through your taps, you will need to replace the dip tube on your electric hot water heater.

Tools and Materials Needed:
  • Pipe wrench
  • Pair of pliers
  • New dip tube
Step 1: Turn off Electricity

Turn off the electricity to your electric water heater. This can be done by flipping the circuit to the off position at your circuit breaker panel.

Step 2: Shut off Cold Water Intake

Using the lever to the cold water intake, turn it to the off position (usually clockwise).

Step 3: Drain Water Supply Line

Take out some of the water in your hot water tank by draining the cold water supply line. You can drain it into a drain in your floor or into a tub.

Step 4: Remove Inlet Pipe

Using a pipe wrench, remove the cold water inlet pipe.

Step 5: Remove Dip Tube

Take a pair of pliers and find the dip tube. Remove the dip tube with the pliers. Refer to your hot water heater diagram for a picture of the dip tube.

Step 6: Install New Dip Tube

Take your new dip tube and install it in the place you removed the other. Wrap the dip tube with Teflon tape before you put it into place.

Step 7: Reassemble

Reassemble the electric water heater (put dip tube back) and turn on the electricity.