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There are several choices when it comes to water heaters. Here are some of the differences:
  • Solar Hot Water Tanks: A solar tank incorporated either electric or a boiler for back up with solar heat from panels on the roof to provide domestic hot water.
  • Tankless Water Heaters: As the name implies there is no tank and the water is heated as it passes through the unit. You receive endless amounts of hot water, smaller footprint than a standard tank and up to 98% efficient.
  • High Efficient Tanks: These look like a standard style tank but they have the energy efficiency of a tankless system and qualify for energy rebates.
  • Power Vented: These tanks are for homes that do not have space to vent through the roof or are too far from an exterior wall.
  • Direct Vent: These tanks are installed when venting cannot go through the roof and the tank can be placed right next to an outside wall.
  • Standard Tank: This is the tank that most people are familiar with, unfortunately even the best tanks are only about 62% efficient.
 

Solar Hot Water Tanks

Vitocell-B-100 Solar Hot Water Tank

Vitocell-B 100

For the Vitocell-B 100 the heat from solar collectors is transferred to the water via the lower heat exchanger coil. The upper heat exchanger coil accommodates reheating by the heating boiler.
  • Corrosion-resistant tank with Ceraprotect enamel coating ensures a long service life. Additional cathode protection is provided by a magnesium anode.
  • The entire water content is heated by a coiled 1”/25 mm diameter steel heat exchanger surface which extends to the bottom of the tank.
  • Large heat exchanger surfaces allow fast and even heating of the entire water content, guaranteeing a high level of domestic hot water comfort.
  • Increased energy savings thanks to highly effective, foamed-in-place HCFC-free insulation keeping standby losses at a minimum.
  • Two thermometers to show the domestic hot water temperature at the top of the tank and at midpoint.
 

Tankless Water Heaters

Eternal GU100

Eternal GU100

  • Up to 10 GPM unrestricted flow
  • 100,000 BTU's Max Input
  • Great for up to 2 simultaneous residential applications
  • 1/2" gas line and 2" and 3" PVC venting
  • Easy to integrate into existing recirculation systems
  • 15 year no leak residential warranty only
Eternal GU145 (S)

Eternal GU145 (S)

  • Up to 14.5 GPM of unrestricted flow
  • 145,000 BTU's Max Input
  • Great for up to 3 simultaneous residential applications
  • Available S Option Factory Installed All Stainless Steel internal piping connections
Eternal GU195 (S,M)

Eternal GU195 (S,M)

  • Up to 19.5 GPM of unrestricted flow
  • 195,000 BTU's Max Input
  • Great for heavy residential or light commercial up to 4 simultaneous applications
  • All Stainless Steel internal piping connections
  • Available M Option Factory Installed Multi Control Unit module for up to 8 x GU195M in network for heavy commercial
Rinnai Tankless Water Heater

Exterior Rinnai Units

Exterior Rinnai units offer tremendous flexibility and safety. They are mounted on the exterior of your home so they require no floor space. While they are designed to operate to -30° F.
Rinnai Tankless Water Heater

Interior Rinnai Units

Interior Rinnai units utilize an exclusive cool-to-the-touch vent system that is sealed combustion and requires only one penetration though the roof or sidewall. Rinnai interior units can mount almost anywhere.
 

 

 

High Efficient Water Heaters:

Vertex 100 Power Direct-Vent Gas Water Heater

Vertex™ 100 Power Direct-Vent Gas Water Heater

  • Unprecedented levels of performance — 96% thermal efficiency
  • Continuous hot water – shower after shower, hour after hour
  • An advanced internal heat exchanger with 100,000 BTU input, inspired by A. O. Smith’s time-tested Cyclone commercial design
  • Easy to install — dimensions similar to a standard 50-gallon power-vent water heater
 

Standard Water Heaters:

ProMax Gas Water Heaters

ProMax® Gas Water Heaters

  • Closed combustion dual-channel vent system — draws combustion air from outside, vents outside the home
  • Features C3 Technology™ that protects against accidental ignition of flammable vapors
  • Environmentally friendly Green Choice™ gas burner reduces NOx emissions by 33% compared to standard burners
  • Piezo igniter for easy “no match” pilot ignition
 

Direct Vent Water Heaters:

ProMax Direct Vent Water Heaters

ProMax® SL Direct-Vent Gas Water Heaters

  • Closed combustion dual-channel vent system — draws combustion air from outside, vents outside the home
  • Features C3 Technology™ that protects against accidental ignition of flammable vapors
  • Environmentally friendly Green Choice™ gas burner reduces NOx emissions by 33% compared to standard burners
  • Piezo igniter for easy “no match” pilot ignition
 

Power Vented Water Heaters:

ProMax Power Vented Water Heaters

ProMax® Power-Vent Gas Water Heaters

  • Vents up to 95 equivalent feet with 4' pipe (80 equivalent feet with 3' pipe)
  • Advanced Intelli-Vent gas control valve with rugged silicon nitride hot surface igniter
  • Environmentally friendly Green Choice™ gas burner reduces NOx emissions by 33% compared to standard burners
  • Piezo igniter for easy “no match” pilot ignition
Greenwood Heating & Air Conditioning, Heating & Air Conditioning, Seattle, WA
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