I have the Natural Gas version of this. I learned more than I anticipated needing to, on my quest for the perfect tankless water heater.The Bosch 800 series was my perfect model.
While it is now obvious to me why this model is head and shoulders above anything else, you may need to spend some time learning about tankless water heaters to see why it is so significant.
1) Ultra efficient, it has 92% efficiency. Only the top of the line models are this efficient. This means lower yearly costs.
2) Powerful: 10 gpm! This puppy can power most houses that have multiple showers and sinks. It is their highest flow unit. It can also be daisy chained so another unit can be attached.
3) 15 year PRO warranty. Instead of the 5 year or 10 year of other models.
4) New Technology.This is the only Bosch unit to have the technology to create this efficiency and the cooling benefits.
5) Reliable. Even though it is cutting edge, some of its parts are based on the 715 unit that is very reliable.
6) Easy repair. Bosch has one of the most extensive list of certified repairmen. Also, unlike other companies, most of the parts can be replaced and are easily available, due to its popularity.
8) Low heat. This model has 2 condensers. That is why it is more efficient. The added benefit is that the heat coming out of this is like a hair dryer. Much MUCH cooler than most units.
9) PVC pipe can be used. I dont know of ANY other water heater that can be vented with PVC pipe. That means smaller pipes, easier work, and much cheaper. Normally water heaters need galvanized vent or Stainless steel venting which is extremely expensive. It can easily cost $300 or more.
10) Concentric Venting (one hole). Because the exhaust is so cool, you can use a Concentric Vent to combine both intake and exhaust from one hole (wall or roof). Without this a water heater you need TWO 3 or 4 inch diameter holes, at least 3 feet from each other. So the extremely hot exhaust does not get used in the intake and overheat the unit.
NOTE:
I am just a consumer. I am not a guy that fixes these, nor do am I associated with a company that sells them. I just wanted a tankless & researched like crazy. Rheem, Takagi, and Rinnai were other companies who make products I considered.
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Bosch ProTankless GWH C 800 ES LP Tankless Water Heater, PropaneProduct Description: Bosch ProTankless GWH C 800 ES LP Tankless Water Heater, PropaneBosch ProTankless GWH C 800 ES LP Tankless Water Heater, Propane Features:; 92% thermal efficiency " .90 energy factor; Condensing heat exchanger for maximum efficiency; Vents vertically or horizontally with 3" PVC, CPVC or ABS-DWV; Concentric and twin pipe venting options; Direct vent, room-sealed combustion; Ability to cascade units for increased flow rates; Suitable for recirculating applications; Outdoor installation using optional kit; Available in natural gas (NG) or liquid propane (LP); 15-year warranty; Power Input LP: 199,000 BTU/Hr; Maximum Flow to Activate 0.65 gallons per minute (gpm); Flow Rates:
35;F rise@ 10.1 gpm
45;F rise@ 8.0 gpm
55;F rise@ 6.4 gpm
65;F rise@ 5.5 gpm
77;F rise@ 4.6 gpm
90;F rise@ 3.9 gpm
; Energy Factor LP: .90; Thermal EfficiencyLP: 92%; Dimensions H: 30;" W: 17.875" D: 11¼"; Weight 74 lbs.; Modulating Gas Valve Min Firing Rate: 19,900 BTU/Hr, Max Firing Rate: 199,000 BTU/Hr; Ignition ElectronicBosch ProTankless GWH C 800 ES LP Tankless Water Heater, Propane Specifications:; Gas Connection ;" Male NPT; Water Connections ;" Male NPT; NG Gas Pressure Minimum: 4" WC, Maximum: 14" WC; Water Pressure Minimum: 30 PSI, (Well): 40 PSI, Maximum: 150 PSI; Electrical Supply 120V - (plugs in); Installation Clearance:
Top: 12"
Front: 1"
Back: 0"
Sides: 1"
Floor: 12"
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