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Radiant heating on the lake.

What makes a good residential HVAC system?

Older houses leaked and, to a degree, are uncomfortable and energy inefficient.  We may think a cold room is standard in houses or a wood boiler needs to heat our house to 26C in the winter. We get use to opening windows in winter to get some fresh air in the house, or even cool […]

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Residential Vault by Uponor

We asked Uponor to put together a residential vault and they responded. We’ll be installing this 6-on setup on a client’s property this spring.

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AFTER

Adding Cooling to a Hydronic System

A fair amount of our work is not really “geothermal”.  In this case, we are working with an existing boiler hydronic system converted to geothermal. The initial conversion functioned, but had poor climate control.  Heat wasn’t all that adequate with the original staple up PEX spacing and there was no cooling option. So, the plan […]

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textchat

Text Chat

With a very busy fall, we have been travelling a lot and not necessarily working in town. A client was getting worried about his geoexchange air/radiant system as the cold weather approached.  I started off the texting early Saturday morning as I did not want to wake them. I admit I was happy to sort […]

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10 Circuit Header

10 Ton Header

This is not really about a 10-ton header, this is about the issues one needs to think about in header design. This is a picture of a 10-ton header we built.   Now the header is for a residential property, with a bunch of (expensive) ball valves fused in line. Commercially, an engineer would likely […]

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Mechanical Room Panorama

Mechanical Room Panorama

A recently completed mechanical room with two Waterfurnace water-water heat pumps, Tekmar controls, Wilo loop pump, and the usual mechanics.  This is on 16-18′ of wall space. Apologies for the photo quality as this is a panorama (distortion) taken on a cell phone (lower quality).  

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A pump, a coupling, and a 3-way valve.

Tearing Apart a Pressurized FlowCentre

Pressurized flowcentres are a common method of pumping a ground loop to a heat pump. On a recent job, I came across a flowcentre that leaked.  It leaked internally and this is not a simple fix.  In this case, we replaced the flowcentre and had the opportunity to take the old one and tear it […]

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IMG_9408 (Medium)

A Blank Slate

 This is a larger geo-radiant system with an HRV unit that we are a few days in to installing.       Inside the mechanical room, we have built an angle iron frame for stacking the heat pumps.  The plumbing to the left is the outside loop being tied in to a non-pressurized flow centre. […]

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