Quick and Quality Service When You Call (619) 273-3830
Water Heaters Only, Inc provides commercial water heater replacement services to San Diego with our trained technicians and same day booking for businesses such as these.

- Apartments
- Hotels
- Restaurants
- Care Homes
- Retail
- Industrial Facilities
Choosing a model for your water heater involves 3 main factors.
- Gallon capacity of the tank
- FHR (first hour rating) – heating capability
- BTU (British thermal unit) – thermal power
You may use your previous water heater to determine what you need. The rating plate on the side of the tank should have its measurements and model number. Give us a call if you need help obtaining information and deciding on a model. (619) 273-3830

Common Commercial Water Heater Model Sizes
- 100 gallon, 83,000 BTU
- 100 gallon, 199,000 BTU
- 80 gallon, 512,000 BTU
All specs including FHR will be in the description of every model.
If you need to replace a residential water heater instead, click here.
Keeping Up To Code
Like residential water heaters, commercial water heaters must have adequate clearance in accordance to California Plumbing Code, Section 504.3 Clearance.
Remember that every water heater in California must have earthquake straps installed, and San Diego, along with Southern California in general, is no exception to earthquake precaution. Luckily, specifics for earthquake strap installation can be found in California Plumbing Code, Section 507.2 Seismic Provisions.

Water Heaters Only Keeps It Energy Efficient
We are very particular in what brand water heaters we provide. Technology for water heaters has vastly improved and we pick the models at the forefront of innovation, looking at core factors.
- Thermal efficiency
- Energy operating costs
- Emission reduction
- Continuous performance
Water Heaters Only, Inc has specialized in residential and commercial water heater replacements in San Diego since 1968. The accumulated knowledge of our expert staff and 24/7 call access are why we excel at getting our customers back in hot water as fast as possible.
Call (619) 273-3830 for any commercial water heater information.