# How to Fix a Leak in a Heater Duct
Ducts need proper sealing to function efficiently. If a duct has a breach, air escapes through that opening and a heater or air conditioner loses effectiveness as a result. If your furnace or heater is starting to not function as well as it used to, check the ducts for leaks. Repairing a leak in a heating duct is a feasible do-it-yourself project that saves you money in heating and cooling costs.
Things You'll Need
- Duct blower
- Metal tape
- Insulation
Instructions
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1
Locate the leak by taping the end of a duct blower to a vent that accesses the duct system. The blower shoots air into the duct so you can locate the leaks in the system.
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2
Seal cracks or slits in the duct by attaching metal tape over them. Avoid using duct tape; the adhesive is weaker than on metal tape and doesn't last. Metal tape is stronger and prevents air from escaping through the leak.
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3
Wrap insulation around the areas of duct work where leaks were discovered, This further helps prevent heat from escaping.
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Home Maintenance
- How to Replace Collapsed Ducts
- How to Fix a Leak on a Vacuum Cover
- How to Box in a Heater Duct
- How to Frame a Heater Duct
- How to Fix an AC Leak
- How to Fix a Warmwave Heater
- How to Fix a Washer Leak
- How to Fix a Door Leak
- How to Fix a Slab Leak in a Garage
- How to Fix a Sunroom Leak
- How to Use Duct Tape to Fix an Air Mattress
- How to Fix a Leak Around a Chimney
