With the roof on we are able to install the HVAC system. In Calgary it is key to have a very efficient furnace and ventilation system. On this install we are using an upgraded furnace that features a variable speed fan and dual stage burner. Basically this allows the furnace to run at less than maximum speed and gas combustion, thus it is quieter and more efficient. The furnace needs to operate through a huge range of outdoor temperature while keeping interior temperature within a small comfort zone, so it makes a lot of sense to have the variable speed unit installed. We also can scavenge the stale air we have paid to heat by using an energy recovery system where the stale air has its heat partially transferred to the incoming cold exterior air. This also prevents uncontrolled cold air from entering into the mechanical room and possibly causing a draft. The installation team was extremely proficient and had most of the two heating systems installed over a two day period. It is fortunate there are many good tradesmen in Calgary. This crew from WJ Mechanical had a combination of over 45 years of sheet metal bashing experience, and it showed!
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| material is delivered friday afternoon |
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| furnace is packaged and ready to go |
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| Heat runs through the very few interior walls on the main floor |
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| Having the tin bashers cooperate with the plumbing (already installed) can be a problem on a custom house as the routes are not always pre-determined collaboratively. In this instance, it work out fine |
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| Dropped ceiling here must be rebuilt and the plumbing vent is cut out |
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| Furnace is hooked up and ready for gas. Energy recovery unit is high on the right side |
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