Boost Your Furnace Output With This Simple Trick

If yous have a room that's always a little colder in the winter or warmer in the summer, try this simple trick to boost your furnace's blower speed.

It's a common occurrence in the heat of the summer or the common cold of the winter — 1 room doesn't get equally warm or as cool every bit the others. It tin can happen for lots of reasons, from improper furnace sizing and muddy filters to air duct insulation failures to the room being farthest from the furnace.

Fortunately, there'south a unproblematic fix if you await at your furnace's Integrated Furnace Command (IFC) board. This trick just works on gas furnace systems with a multi-speed blower.

To sympathize how this works, permit's look at the wiring on your furnace's blower. There are often five wire colors coming from your blower to your IFC. Each is associated with a different blower speed. Typical setups include these wire colors with associated blower speeds.

• Blackness: Loftier;
• Yellow: Medium-high ;
• Bluish or brownish: Medium-low;
• Red: Low;
• White or majestic: Common.

Family Handyman

To begin, turn off the power to your furnace. Mine has a wall switch. If there isn't one in your dwelling house, turn it off at the breaker box. Most furnaces have a relay switch on the door comprehend. When you open the console, it kills the power to the furnace.

On my furnace IFC, the black (high speed) wire is continued to the air conditioning (absurd) terminal, and xanthous (medium-high speed) is connected to the (heat) terminal. There are also ruddy and brown furnace speed wires. These connected to (park) terminals, which are not used and only hold those 2 additional wire speeds.

It's non advisable to tiresome your furnace blower speed. If y'all do, you may not accept enough air flow over the heat exchanger, resulting in overheating and eventually a shorter exchanger life bridge.

When the summertime air workout season transitions to the fall heating season, increment the blower speed past switching the wires on the cool and heat terminals. Only swap these two wires. If you remove the common and place it on some other terminal, it tin can fire out your motor — not how you want the new furnace season to begin.

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