Heat pump hot water heaters

[TechShop]

Originally Posted by ecomodded

Could also leave it in the box it came in and add some insulation to the voids.

It was right after I recycled the box that thought of using it for the tank now I wish I kept the box to use to make the portable ac heaters vent system.

Next house I think I may well keep the tank in the box now that I think about it and fill it with scrap insulation as its first layer and do a 2nd plywood case over it and keep it in a warmer part of the house.

That would smarten it up past Eco standards

Filling the box with fiberglass is a great idea.

You could also use a large tarp or scrap piece of poly sheeting to wrap around the insulation to keep it tidy.

For the price of even the cheap plywood, you could use 1" thick structural XPS foam to build the box it's R5, so it can only help. The 2" stuff gives R10 and is very stout if you buy it without the cut-lines. If it needs to look nice, put some wallpaper on the foam.