Viessmann Vitocell 300-V 79 Gallon Indirect Fired Domestic Water Heater - 7720338
Viessmann Vitocell 300-V 79 Gallon Indirect Fired Domestic Water Heater - 7720338
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Streamline Your Hot Water With Viessmann Vitocell 300-V 79-Gallon Indirect Water Heater
Outfit your home for abundant, hygienic hot water with lower standby losses. The Viessmann Vitocell 300-V EVIB-79 (7720338) is a 79-gallon indirect-fired domestic water heater designed to deliver abundant, consistent hot water using heat from an external boiler. Its high-grade stainless steel tank and large heat exchanger coil provide fast, even recovery while resisting corrosion for long-term performance. With low standby heat loss and no sacrificial anode to replace, it's a dependable, low-maintenance choice for residential hot water systems.
Key Features
Fast, Even Hot Water Recovery
The large stainless steel coil extends toward the bottom of the tank to heat more of the stored water evenly, helping maintain consistent temperatures through repeated hot water demand.
High-Grade Stainless Steel
The tank and heat exchanger use corrosion-resistant stainless steel for long service life and hygienic domestic water storage. The design also eliminates the need for a consumable sacrificial anode.
Low Standby Heat Loss
Efficient PUR foam insulation helps retain stored heat between draws, reducing standby losses and helping the system use boiler energy more effectively.
More Capacity Without More Appliances
The 79-gallon tank stores a substantial reserve of hot water while using an existing compatible boiler as its heat source. Multiple Vitocell tanks can also be combined when an application requires greater hot water capacity.
Product Details
- 79-gallon capacity provides a larger hot water reserve for residential demand.
- Indirect-fired design uses an existing compatible boiler as the heat source.
- 345 GPH first-hour rating supports demanding hot water use.
- 269 GPH continuous draw rating helps keep hot water available.
- High-grade stainless steel construction resists corrosion for long-term durability.
- No sacrificial anode means less routine maintenance and no anode replacement.
- Large 1⅜" stainless steel coil promotes fast, even heat transfer.
- Low standby heat loss helps keep stored water hot between draws.
- CSA Low Lead certified, including NSF/ANSI 372 requirements.
- Limited lifetime warranty
Viessmann is a global leader in high-efficiency heating systems, known for durable engineering, advanced condensing technology, and long-lasting hydronic boiler solutions.
Additional Information
- Brand: Viessmann
- MPN: 7720338
- Series: Vitocell 300-V EVIB-79
- Tank Material: High-grade stainless steel
- Product Type: Indirect-fired domestic hot water storage tank
- Capacity: 79 gallons
- First Hour Rating: 345 GPH
- Continuous Draw: 269 GPH
- AHRI Heating Input: 169 MBH
- Dimensions: 26-1/4" W x 68-1/2" H
- Weight: 231 lbs.
- Heating Water Connections: 1" male NPT
- Domestic Water Connections: 1" male NPT
- Maximum DHW Working Pressure: 150 PSI
Vitocell 300-V FAQ
Is a 79-gallon indirect water heater a good choice for a large household?
A 79-gallon indirect water heater can be a strong choice for larger households with high or simultaneous hot water demand. The EVIB-79 combines substantial stored capacity with high recovery performance, although the proper size also depends on the home's peak demand and boiler capacity.
How does the Vitocell 300-V heat domestic water?
The Vitocell 300-V heats domestic water with hot water supplied by an external boiler through its stainless steel heat exchanger coil. This allows one boiler system to provide both space heating and domestic hot water without a separate burner or electric heating element.
What size boiler does the Vitocell 300-V EVIB-79 require?
The EVIB-79's AHRI-certified rating is based on 169 MBH heating input, 180°F boiler supply water and 14 GPM heating flow. The actual boiler selection should be based on the home's total heating and hot water requirements rather than the tank size alone.
Can the EVIB-79 handle high hot water demand?
Yes, the EVIB-79 is designed for high domestic hot water demand, with a 345 GPH first-hour rating and 269 GPH continuous draw rating under AHRI-certified conditions. Actual performance depends on the connected boiler, heating water temperature and circulation flow.
If you have any questions before purchasing, contact the Plumbing Deals via the live chat feature, email at contact@plumbingdeals.com, or give us a call at 888-682-5956!
What maintenance does the Vitocell 300-V EVIB-79 require?
The EVIB-79 is designed for low-maintenance operation thanks to its stainless steel construction and lack of a sacrificial anode. Routine inspection and service should still follow Viessmann's installation and service instructions, including inspection of the temperature and pressure relief valve.
| Weight | 231.0 lb |
|---|---|
| Collection | Vitocell 300-V |
| Height | 68.50 in. |
| Horse Power | 1/3 |
| Length | 26.25 in. |
| Room | Utility |
| Width | 28.00 in. |
| Inventory Number | VIESEVIB79 |
| MPN | 7720338 |
