ᐅ Heat Pump Next to Basement Window Well – How to Insulate?

Created on: 17 Nov 2015 23:55

Hello,
we have installed a Vitocal 300-A from Viessmann, which is mounted on two basement light wells.

Unfortunately, we have noticed that the rather piecemeal installation in the light well (see photo) has many gaps and a constant draft from outside can be felt.

Does this light well cover for the heat pump really need to be airtight?
Is using expanding foam the only option, even though it looks untidy?
Or what experiences do you have? How could this be done more efficiently and neater?

I would really appreciate any suggestions and feedback.

Close-up of a door frame with white insulating foam around the gap

Door frame with insulation in open wall opening – construction site

Large building services unit with cables and pipes in the basement

Dieter_SLS13 Apr 2016 17:15

The unit is located in the corner of the basement room; that is, the light wells are connected directly to the unit around the corner... without additional ductwork.

tomtom7913 Apr 2016 17:16

Pipes branch off to the right. They are probably for the underfloor heating, right?

Dieter_SLS13 Apr 2016 17:35

Yep... underfloor heating, warm water and return flow... and the floor drain... the photo is a bit older and shows the unit without its insulation and cover... the unit itself is also insulated by about 10-15cm (4-6 inches) with a complete enclosure.

tomtom7913 Apr 2016 17:44

#10

Ah, okay, I was beginning to think there was some serious botching going on there.

ᐅ Heat Pump Next to Basement Window Well – How to Insulate?

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