Viessmann Vitocell 300-V EVIB-53 Indirect Water Heater, 53 Gal
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A 53-gallon stainless steel indirect water heater that uses a compatible boiler as its heat source, stepping up in storage and recovery from the 42-gallon model. Its AHRI ratings are 238 GPH first hour and 190 GPH continuous draw, based on 119 MBH heating input.
A large stainless coil extends low in the tank so more of the stored water is heated evenly, keeping temperatures consistent through repeated draws. Stainless construction removes the need for an anode, and PUR foam insulation helps hold heat between uses. Several Vitocell tanks can be combined where more capacity is needed. The tank is CSA Low Lead certified, covering NSF/ANSI 372 requirements.
For the AHRI test, the coil received 14 GPM of heating water supplied at 180°F. Heating connections are 1 in. male NPT and domestic connections 3/4 in. male NPT, with a 150 psi maximum domestic working pressure. The tank is 25 in. wide and 55-1/2 in. high and weighs 143 lb.
Highlights
53-gallon high-grade stainless steel tank and coil
AHRI 238 GPH first hour and 190 GPH continuous draw
Rated with 119 MBH heating input at 180°F supply and 14 GPM
No anode to service; PUR foam insulation for low standby loss
Meets CSA Low Lead requirements, NSF/ANSI 372 included
Specifications
Brand | Viessmann |
Model | 7720343 |
Type | Indirect DHW storage tank |
Capacity | 53 gal |
Material | High-grade stainless steel |
First hour rating | 238 GPH |
Continuous draw | 190 GPH |
AHRI heating input | 119 MBH |
Heating connections | 1 in. male NPT |
Domestic connections | 3/4 in. male NPT |
Max pressure, DHW | 150 psi |
Width | 25 in. |
Height | 55-1/2 in. |
Weight | 143 lb |
Certifications | CSA Low Lead, NSF/ANSI 372 |

