What Size Heat Pump Do I Need For 1300 Sq Ft

What are the unlike sizes bachelor?

All oestrus pumps are measured past the number of BTU's (British thermal units) they produce when in air workout way. Popular sizes purchased in Atlantic Canada past home owners are:

9,000 BTU
12,000 BTU
fifteen,000 BTU
18,000 BTU

There are likewise 7,000 BTU and 24,000 BTU unmarried zone heat pumps, simply they are rarely installed on their ain in residential applications. Normally they are part of a multi zone system.

For case, a 7,000 BTU indoor unit is most oft used as part of a multi zone (multiple indoor units matched to one outdoor unit of measurement). A 24,000 BTU outdoor unit is most often part of a multi zone system with ii or more indoor units connected to information technology.

The most pop sizes installed for HRM dwelling owners are 12,000 BTU and 15,000 BTU.

Why are there different sizes?

Different sizes exist to accommodate varying layouts and square footages of homes. The higher the number of BTU's the larger the expanse a machine tin can efficienctly heat or cool.

For instance, a nine,000 BTU estrus pump is suited for 250 to 450 square feet.

How practise I decide which size I need?

At that place are two primary factors when determining the size of heat pump you need.

The square footage of the are you're installing it in
If there are whatever big doorways or hallways continued to that area or room

While inside your abode we get-go consider the foursquare footage of the room/area and using this guide determine which sized oestrus pump will suit that space:

9,000 BTU – ~250 sq.ft to ~450 sq.ft
12,000 BTU – ~550 sq.ft to ~800 sq.ft
15,000 BTU – ~750 sq.ft to ~1100 sq.ft
18,000 BTU – ~850 sq.ft to ~1250 sq.ft

If in that location are larger door means or hallways connected we may consider upsizing the unit of measurement installed in your home.

Are at that place exceptions to Sizing Rules

In sure styles of homes, such as split entry or bungalows, we will advise one size larger rut pump than the above table of sizing suggests.

Why?

Most layouts for carve up entries and bungalows are similar. One side of the abode upstairs is open concept. Then there is a hallway that connects the open surface area with bedrooms, bathrooms etc. on that flooring.

We suggest the rut pump be installed at the top of that hallway so the heat can make full the principal living area, where the unit is installed, as well as catamenia downwardly the hallway and provide spill over into other rooms (pending the door is left open). The drawing below is an case split entry upper level layout and how we ofttimes install heat pumps in these styles of habitation. In a full carve up entry, the heat pump size is either a 12,000 or 15,000 BTU.

This same concept can come into play if there is a big double door way or archway leading to some other room or hall way.

The primal to installing a larger unit in a room than the square footage suggests is in that location must be somewhere for that extra rut to go. Otherwise you risk having an oversized unit.

The danger of oversizing a Oestrus Pump

If y'all were to purchase a unit also large for the area it's installed two things volition happen.

The unit will turn on and turn off frequently.
The estrus pump volition often not run long plenty to trigger what is known every bit a defrost wheel.

The issue of Frequent Turning off and On (Short Cycling)

Thanks to the inverter technology built into every heat pump a auto actually draws less electricity when it'south able to run on what we like to call "cruise control style" versus if information technology is frequently shutting off and and then starting back up.

When a machine turns on and off frequently it's known as brusque cycling. This occurs when a heat pump gets a room to temperature very quickly and and so shuts off. This is often a symptom of a rut pump being oversized for the spaces information technology is installed in.

While this concept of heating a infinite quickly and so shutting off one time the infinite is to temperature makes sense for oil or electrical resistance, it can cost you lot more on your power bill with a heat pump.

The issue with Brusk Cycling and Defrost Mode

Defrost cycles (encounter video below for explanation), are a normal part of oestrus pump operation. The purpose of a defrost bicycle is to melt ice and frost off the outdoor units scroll to ensure the system tin operate at superlative efficiency.

Most estrus pumps need to operate for a certain amount of time before a defrost cycle will trigger. This time is frequently around the 15 minute mark.

If your heat pump is running for a couple of minutes, shutting off, then running for a couple of minutes and shutting off etc. So the unit never runs long enough to trigger a defrost bicycle in the outdoor unit.

The danger for you equally the heat pump owner is the outdoor unit of measurement tin become a cake of ice as more and more frost builds up on the outdoor coil.

This can lead to your heat pump no longer operating, and worse, harm to the curl, fan and fan motor.

What Happens During Defrost Video

View this video!

In Conclusion

Bigger isn't e'er amend with heat pumps. Take into consideration non merely the listed size (east.g. 12,000 BTU Fujitsu) but also the nominal heat the machine creates and how much estrus it produces at lower temperatures.

Purchasing the right heat pump for your home is more than complicated and so but calling around looking for prices on a certain size. Exist sure to have a professional visit your home and assess the best positioning, sizing and brand of a heat pump for you.

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