Arnold Trachtenberg via pbs
Fri, 08 Jan 2021 08:41:23 PST
 I think the greenhouse topic is a great one.
I installed a Lord and Burnham greenhouse about six years ago.
It's a lean to with access only from the house.
It's 7 x 12 feet and sits on a masonry foundation to match the rest of the house.  Challenge was to find the old brownstone and find someone who knew how to build it.
I was lucky to stumble upon a resident in my town that was doing a renovation and taking down an old part of the house which was the same age as mine.  For $50 I had the contractor dump the demolished foundation in my driveway.
Contractor installed a concrete footing and 12 " cinder block to grade and than a 6 " block for a knee wall.  He cut the back off the brownstones and faced the concrete block to match the existing foundation.
I made the floor of the greenhouse just 5 inches lower than the house floor.  Didn't want a leak running into the house.

There's a floor drain connected to an outdoor drain that ends in a sloping bank of ivy in front of the house.

I used a concrete slab wit ha radiant heating system.
I had the radiant floor installed knowing that at some point I would get to the heating system.  Until then I had an electric heater.
Ridge vent is connected to a thermostat as is the radiant system.
The ridge vent closed at 50 F and heat comes on at 42 F.  I didn't want one system turning on or off the other.
I had a home water heater failure so I installed a Weil McClain mini furnace  ( 100,000 BTU) that makes hot water.  One loop goes to the radiant greenhouse floor and the other into a highly efficient tank for domestic hot water.
I have not seen a dramatic increase in gas utility bills.  I attribute this to the highly efficient domestic hot water system.
Teh old stand alone tanks are not efficient at water storage.

I had awning window installed on the long south facing side. Which I can open in spring and summer.
One problem is that I have to get down on hands and knees to open and close the awning windows and further complicated by the fact that they are under the greenhouse benches.

I have nothing in the greenhouse in summer so shading isn't an issue.
The radiant floor is installed on a QP floor with a 2 inch aluminized foam board under the concrete and an 8 inch piece inserted to separates the exterior wall from the slab.  Much heat is lost as the floor radiates heat to the exterior wall foundation.  I tried to minimize that with the vertical foam board.
I can send pictures if anyone is interested.
ArnoldNew Jersey

pbs mailing list…
Unsubscribe: <>

More information about the pbs mailing list