Solar Tubes: Very Efficient Heating

Apricus makes a unique solar hot water heater which is 30-40% more efficient than flat plate solar systems. The secret to the performance is the use of cylindrical evacuated glass tubes to absorb the heat from the sun. Because the tubes are cylindrical, there is always a surface area that is perpendicular to the sun. The tubes also house a …

Ariston Point-Of-Use Hot Water Heater

Designed and made in Italy, Ariston hot water heaters have a lot going for them. They plug in directly under the sink or wherever you want hot water. They produce hot water instantly — you don’t have to wait for the water to get hot (80 billion gallons of water is wasted annually in the U.S. this way). The hot …