Yes, one SolarSheat 1500G or 1500GS provides supplementary heating for a room up to 1000 square feet (in a well-insulated house, in northern US climates).

It's an air heater that mounts on the outside of a south facing wall or roof. The sun heats up a SolarSheat air collector like the sun warms your car on a sunny day. Imagine capturing that hot air and dumping it into your home during the fall, winter, and spring heating season (see the How it Works diagrams).

Both Solarsheat air collectors use inside air and heats it up to higher temperatures, and dumps it back into the house. The 1500G uses a self-powered fan, which is built into it with a solar electric panel. It's designed to be installed very quickly. It can be installed in 1 hour on a south facing wall. The 1500GS is considered a "secondary" solar collector, with no moving parts. It was designed to add power to a 1500G (see 1500G 2 Pak) or to be connected to other 1500GS's.

No, the SolarSheat only works during the sunny day time hours.

They are about 10-20% more efficient, but liquid solar thermal collector (flat plate, evacuated, etc.) systems are much more expensive. With a solar air system there are No leaks, no worrying about glycol ratios, anti-freeze pH balance, rust inhibitors, stagnation damage to antifreeze, power outages, overheating solar storage tanks during vacation time, or steam filled basements, heat exchanger or collector calcification (non-anti-freeze systems).

Multiple SolarSheat 1500GS takes about 6 years to pay for itself.

In most North American climates, the average sunlight of a heating season occurs in October and February. Imagine the sunlight in October and February in your location, 50% of the time it's sunnier, 50% it's darker.

There is an exemption for solar technology but unfortunately warm air systems do not qualify at this time. Check with your tax preparer for your specific deduction available. There are different subsidies for each state and only some states have subsidies. The U.S. has announced the new solar tax credit extended through 2008. (See Incentives under the More Info section.)

We use a specially designed HRV to work with our Solarsheat 1500s panel system. The fresh warm air is collected and passed through the HRV. The heat exchanger inside the HRV is only used during the non-sunny days or nighttime (see the Solar HRV in the Products section).

The best solar collector tilt angle (from horizontal) for space heating is equal to your location's latitude + 15 degrees. However collector tilts equal to your latitude to 90 degrees (wall mount) is generally acceptable. When there is snow often on the ground in front of the collector to reflect sunlight onto the collect, then mounting on a wall (90) is especially great. Wall mounting collectors is generally the least expensive, especially for adjacent, direct room heating, but is the most susceptible to shading. For roof mounts, to shed snow, we recommend an angle no less than 40-45 degrees (aka. 10:12 to 12:12 pitch), no matter what your latitude is.