Hotdog Solar heater for the home, garage heater, shed heating, off grid solar heater, solar vacuum tube building heating, solar thermal heater.

Evolution of Bill Rowling's solar room air heater.

Experiment # 21 room heater. The basic heater is made from an upside-down passive solar batch water heater into a fan forced hot air room heater. It generates 1.5 kW of heat all day using 65 watts for the fan which can be solar powered too.

Evolution of Bill Rowling's solar room air heater.

This is the first collector in installed oriented north south with no reflector instead of facing south with a reflector in back. Installed spring 2010 and generating 1.5 kW of heat that warms the enter house. Our latest design has a 7 inch by 7 inch manifold along the bottom and a nice A-frame instead of the big round tank and upside-down frame seen here.

Evolution of Bill Rowling's solar room air heater.

Pulls 500 cubic feet per minute of air out of a room, warns it at least 50 degrees ore and quietly returns it to the room.

For example if the rooms air temperature is 60 degrees the heated air will be at least 110 degrees.

The suns heat is absorbed by 32 vacuum tubes and the heat is transferred to the room by our patent pending heat exchanger.

Heats a 20x20 room to over 70 degrees every day all winter long.

There is also electric heat in this home but it is not used during any bright day even a cloudy one. The clouds act as reflectors.

The round tubes are running north, south so the get full sun from the crack of sunrise till the last ray of sunset.

When not needed the heat just stays up in the vacuum tubes.

Mount it on the south wall, duct it into the room with 10 inch insulated furnace ducting, mount the thermostat and your done.

From the grid using 120 volt AC, 220 volt AC or solar operated 12 volt DC.

Questions Email Bill or call Bill's cell right now 253-677-0205

If you want me to build you a 32 tube system I have to charge $3999 plus freight. (Freight approx. $200)

DIY Free Plans Purchase the basic tank and tubes $600 plus freight and you can make one of your own like the one shown here or the new 7 inch by 7 inch manifold design $800 plus freight, a couple of Home Depot duct fans, some duct and tubing and you're on your way.

Hot Evacuated Air Tube (H.E.A.T.)

Solar Building Heating Systems

We are offsetting our carbon footprint for the Zero-Race using solar evacuated tube heaters in Bill Rowling's home and business. We would love to have help from everyone possible offsetting our carbom footprint. If you would like free plans for this technology call Bill's cell 253-677-0205 or email Bill.

Completely solar operated heater pulls 500 CFM out of a room and returns it at least 50 degrees on a sunny day and 20 degrees on a cloudy day.

Still works great on freezing cold, windy or rainy days.

32 tube system generates 1.5 kWs of clean, free heat all day long.

Evolution of Bill Rowling's solar room air heater.

Experiment #18 located on the west side proved to everyone that solar thermal technology works very well in the cloudy Puget Sound area. This unit started out as a solar thermal passive solar water batch heater. It started generating .75 kW of heat all day long and we new we were on to something big.