Commercial Water Heaters in Orange, CA
Professional Installation, Replacement & System Sizing
Call 24/7 At 1-800-833-4571
Businesses and property owners in Orange depend on reliable hot water to keep daily operations running smoothly. From commercial properties and retail spaces to multi-unit buildings and service-based businesses, Water Heaters Only, Inc. provides expert service for commercial water heaters in Orange, California, including installation, replacement, and system upgrades.
Commercial water heaters are specifically designed for commercial and institutional use, delivering higher output and faster recovery rates than residential systems to support consistent, high-volume demand.
How Commercial Water Heaters Are Sized

Commercial water heaters are evaluated using performance metrics that go beyond basic tank size. One of the most important factors is the First Hour Rating (FHR) — which measures how much hot water a system can deliver during the first hour of peak usage.
The FHR is determined by:
- BTU input
- Tank capacity
- Recovery speed
In many replacement situations, installing a similar tank style can be helpful. However, the most important consideration is ensuring the new unit meets the required BTU output and minimum FHR for your specific application, so performance remains consistent during busy periods.
Commercial Water Heater Applications in Orange
We work with a wide range of commercial water heater applications throughout Orange and surrounding areas, including:
- Apartment buildings and multi-family communities
- Hotels, motels, and hospitality properties
- Restaurants and commercial kitchens
- Laundry facilities and shared laundry rooms
- Assisted living and care facilities
- Grocery stores and food service retailers
- Salons, spas, and personal care businesses
- Institutional and light industrial facilities
Each environment places different demands on a hot water system, making proper sizing and equipment selection essential for efficiency and longevity.
Energy-Efficient Commercial Water Heaters & California Standards
Modern commercial water heaters are built to comply with updated California energy efficiency regulations and emissions requirements. These advancements have resulted in systems that offer improved performance while reducing operational costs and environmental impact.
At Water Heaters Only, Inc., we stay current with all state and local compliance requirements, ensuring your commercial water heater installation in Orange meets applicable codes and delivers dependable, long-term performance.
Common Commercial Water Heater Sizes & BTU Outputs
Light-Duty Commercial Water Heaters
- 75 Gallon – 76,000 BTUs
- 100 Gallon – 83,000 BTUs
Medium-Duty Commercial Water Heaters
- 100 Gallon – 199,000 BTUs
- 100 Gallon – 270,000 BTUs
Heavy-Duty Commercial Water Heaters
- 80 Gallon – 399,000 BTUs
- 80 Gallon – 512,000 BTUs
To determine the specifications of your current system, locate the manufacturer’s rating plate, typically found near the top portion of the tank. This label lists both the BTU input and gallon capacity. A common example may read:
250,000 BTUs / 96 Gallons

Commercial Water Heater Service You Can Trust in Orange
Whether you’re planning to replace aging equipment, improve efficiency, or install a new commercial system, Water Heaters Only, Inc. can properly size and recommend the right commercial water heater for your building’s needs.
Our team is happy to:
- Evaluate your existing water heater
- Confirm energy and code compliance
- Recommend efficient, properly sized systems
- Provide straightforward pricing and expert guidance
Call 1-714-660-7501 today to speak with a commercial water heater specialist or schedule an onsite evaluation in Orange, California.
Schedule Service 24/7 At 1-714-660-7501
