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Home Inspector Blog

Michael Burfitt

​Internachi certified professional inspector
Halifax, nova scotia

Ductless Mini-Splits

10/17/2021

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Being a homeowner can mean having to make many large financial decisions even after the home has been purchased and the closing costs have finally been paid off. One such major expense I see more homeowners making is installing heat pumps, in particular retrofitting older homes with a ductless mini split system. We completed this task on our home in the winter of 2020 and you may be wondering if it was worth it? My answer is simple: YES!
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Let me first mention the drawback, and it is a big one. Costs can vary but $10,000 is a good ballpark estimate for installing a mini-split system. While financing options are available and these units more than make up for it over time in energy savings there is no getting around the fact a significant upfront investment is involved. They are also not very attractive to a home’s decor (some recent models, however, look just like artwork on a wall) and while I have no issue with its appearance, others may not feel the same. As for the benefits, they are many and here are just a few:


Reduction in Heating Bills
The most obvious benefit can be seen in your heating bills, especially if you have an all-electric heating system like we did. Even considering that 2020 was the first winter we had a baby in the home and subsequently turned the heat up all day long, our power bill still dropped by almost 40% during the coldest months! Even in the summer we only went up about 15% and considering the incredible difference in comfort that was a price well worth paying. Given how energy costs are rapidly rising this is also a good buffer against sharp price increases. 

Can Run Dual Heating & Cooling Duty
Heat pumps are basically Air Conditioners (or Refrigerators) that can be run in reverse, where the two heat exchangers switch between acting as an evaporator and condenser as the season (or in Nova Scotia, day) changes. As a result, they provide year-round comfort on even the coldest days. Even on those crazy weather days where we go from cold to hot to cold again, they can seamlessly switch between heating and cooling automatically and efficiently.

No Extraordinary Installation
As the name implies, ductless mini-splits do not use air ducts as working with existing ductwork is usually difficult due to density differences between hot and cold air. Side note: I once took a course on air system design and let’s just say it’s best to leave it to the pros! If there is room in the electrical panel then no complicated electrical work is necessary. Even the large amount of moisture removed by the system in the summertime usually drains outside without the need of a drain pan or other maintenance.

Easy to Maintain
While I always recommend an annual checkup by a qualified HVAC (Heating, Ventilation & Air Conditioning) technician, the only maintenance required by homeowners is to regularly clean/change the filters and keep snow and other debris away from the outside unit.

Quiet
Like any appliance with a compressor, heat pumps make varying levels of noise. However, it is almost exclusively made outdoors, well away from the inside of the home. The noise level is comparable to a fan on the lowest setting most of the time and even at its worst it is barely noticeable.
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The biggest myth I see about heat pumps is that they are not suitable for cold weather. The fact is some units can operate efficiently right down to about -26C/15F, which is more than adequate for even the coldest days in our Nova Scotia climate. Heat pump technology has grown by leaps and bounds in the last decade and will likely only improve over time. Do I recommend getting a heat pump installed if reasonably possible? You bet! 
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Inside Edge Home Inspections Ltd. 
Halifax, NS
(902) 209-9921
info@ieinspections.ca
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