My HVAC professional suggested building a 9-inch stand for my heat pump
to make it more efficient. He mentioned that landscaping blocks work,
but I'd like to build something that looks a little less jury-rigged and
would keep the compressor level so it maintains its efficiency. I think
blocks would tend to sink over time. I don't want to disconnect the heat
pump lines so I will have to jack the chassis in place and build a
temporary frame to hold it up, I won't have a lot of room to work.
I'm thing of building a rectangle of 2 X 10s on the ground, and filling
it with gravel, sand and powdered cement to make a poor-mans concrete
pad. Then removing the boards so my wife can decorate the edges any way
she choose to make it look more natural in the garden. The compressor is
not heavy enough to require the strength of well-mixed concrete and I
won't really have the headroom to work concrete anyhow.
Thoughts and questions:
- The compressor is 15 years old, so I will make the pad way oversized
to receive the next heat pump, or maybe two, given the trends in HVAC I
see around me.
-Will a rigid pad transmit more sound? The compressor is noisy enough
already, I don't want more. I'm guessing my poor-man's concrete will be
somewhat damped due to it agglomerated nature
-Will my poor-man's concrete break down so fast I'll wish I'd gone for
good concrete?
Jon
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