Just add water and electricitythis Electrolyzer produces pressurized hydrogen you can save in a simple storage tank (hot water, propane, or compressed air). Use for welding, cutting, cooking, heating, running engines, or supplying electricity with a fuel cell. With a wind generator producing 10-40A, you produce 1/8 to 1/2 cubic foot of hydrogen per hour. Includes one electrolyzer, 3' hydrostatic control, and directions. 7 1/4' x 10' x 14', 30 lbs. 1-year warranty.

If you use a woodstove to heat your home, you can heat your water at the same time or back up a solar water heating system. Use it with a demand hot water heater to insure you will always have hot water. Also good for hot tub/spa or hydronic space heating. How much hot water you get depends on how much you use your woodstove. Installs easily but you need good plumbing skills. Stainless versions available with right angle outlets (15% extra). 2" wide by lengths listed.

A proven, effective designmade for over 40 years in Mexico and hundreds of thousands still in use. Holds 15 gallons of hot water and takes 20-25 minutes to heat up. Also great for heating hot tubs and even distilling potable water. The wood version also burns corn cobs, pine cones, even cow chips. The dual-fuel model as well as the above uses kerosene, wood, alcohol, citronella (keeps mosquitoes away!), heating oil (great when your wood is wet or frozen). Rated to 100 psi and includes temp/pressure relief valve. 4" vent, 45 lbs, 48" H x 12" diameter, 45 lbs. 1/2" inlet and outlet fittings on top.

Abundant hot water from a wood stove. Heat your house and hot water at the same time! Enough hot water for domestic use or hydronic in-the-floor space heating. Built to last a lifetime from heavy rolled steel. Thermostat and big fire box permits large fillings of wood for 12 to 15 hours of controlled heat.Woodfired Water Heater w/Stainless Steel WaterCoils: 95,000 BTU for space heating 78,000 BTU's for Hot water single coil, recovery time for Domestic Hot Water.Woodfired Water Heater/Furnace Model: WoodfiredForced Air Furnace For Air Heating! Could outfit with DHW coil, HW5103, 105,000 Btu's for space heating. EPA Approved.Woodfired Water Heater/Boiler137,000 BTU for Hot Water, three coils, two sides, one on top, for fast recovery time, needed for Hydronic heating systems. Can be hooked directly into existing boiler system EPA Approved.