The Triton ProMax Commercial Gas is the brand\'s mainstream commercial gas tank water heater — designed for restaurants, small healthcare facilities, retail buildings, and light multifamily applications where standard residential capacity is insufficient and dedicated commercial-grade build is required.
ProMax Commercial Gas configurations
- 75-gallon and 100-gallon storage capacities
- 76,000-160,000 BTU/hr input range depending on model
- Atmospheric vent and power vent configurations
- Standard or higher-efficiency variants
Commercial vs residential construction differences
ProMax Commercial Gas distinguishes from Triton\'s residential lineup:
- Heavier-duty tank construction: thicker steel, higher-grade glass lining for commercial duty cycles
- Higher BTU input: typically 2-4x residential gas capacity, supporting faster recovery for higher peak demand
- Commercial-rated components: heavier-duty gas valve, more robust controls
- Shorter warranty: typical 3-5 years vs 6-12 years residential (commercial use is more demanding)
- Code-compliance documentation: commercial certifications for inspection compliance
Typical applications
- Small restaurants (50-150 seats): 75-gallon capacity typical
- Quick-service food locations: 75-gallon with high BTU recovery
- Small retail (with restrooms): 75-gallon
- Light healthcare facilities: 75-100 gallon depending on patient room count
- Office buildings (10-30 employees): 75-gallon sufficient
- Light multifamily (4-8 units): 100+ gallon or multiple units
- Small fitness facilities: 75-100 gallon for member shower use
Sizing methodology
Commercial sizing depends on peak demand patterns:
- Peak hour demand: calculate maximum simultaneous hot water demand
- Recovery requirement: how quickly the unit must recover for sustained use
- Duty cycle: continuous operation vs intermittent
- Inlet water temperature: colder inlet requires more BTU input for same recovery rate
Most commercial water heater suppliers can size the unit based on building usage data. Undersized installations result in customer complaints during peak; oversized installations waste energy on standby losses.
ProMax Commercial Gas vs mainstream commercial brands
vs Bradford White ProMax Commercial
Bradford White ProMax Commercial is industry-leading in this segment. Triton ProMax Commercial offers similar capability at slightly more accessible pricing. Bradford White edges ahead on field reliability and brand recognition.
vs A.O. Smith Cyclone Commercial
A.O. Smith Cyclone is well-regarded for commercial applications. Triton ProMax Commercial competes on price; A.O. Smith offers slightly broader product range.
vs Rheem Commercial
Rheem Commercial offerings provide strong dealer network and warranty support. Triton ProMax Commercial may offer pricing advantage but with narrower service network.
vs Lochinvar EnergyRite
Lochinvar focuses on commercial-grade water heating with strong commercial dealer network. Triton ProMax Commercial is more residential-grade for light commercial applications.
Installation requirements (commercial)
- Gas line: sized per Triton specifications for specific BTU rating, with manometer verification under load
- Venting: Type B atmospheric or PVC power-vent per the specific model
- Combustion air: commercial units demand significant combustion air; verify install location has adequate makeup air or sealed combustion ducting
- Electrical: 120V for power-vent and controls; verify GFCI requirements per local code
- Water connections: 3/4" or 1" cold inlet and hot outlet, expansion tank rated for commercial pressure cycles
- Drain pan: required for any commercial install above finished floor space
- Seismic mounting: required in seismic zones
- ASSE 1070 mixing valve: required for many commercial applications to prevent scald risk
Commercial service patterns
Commercial water heaters demand more frequent service:
- Quarterly: visual inspection, T&P test, basic operational verification
- Semi-annual: anode rod inspection (commercial use accelerates anode consumption), gas pressure verification
- Annual: full service — combustion analysis, vent inspection, full flush, element/burner inspection, control board verification
Service contracts with commercial plumbing companies are standard practice for commercial installations.
Lifespan in commercial service
ProMax Commercial Gas in light commercial service typically achieves 8-12 years. Heavy commercial use (restaurants with sustained high demand) may see closer to 6-10 years. Compared to residential where 15+ year service is common, commercial duty cycles shorten lifespan meaningfully.
Warranty
ProMax Commercial Gas warranty terms reflect commercial use:
- 3-5 year tank warranty (model-dependent)
- 1-year parts warranty
- 1-year labor (where included; often owner-pays after install)
Extended warranty options available through Triton-authorized commercial dealers.
Commercial code compliance
ProMax Commercial Gas installations must comply with:
- ASSE 1070 anti-scald tempering valves (where required)
- Local commercial plumbing code
- Local building code for venting, combustion air, and drain pan requirements
- NFPA 54 fuel gas code for gas connections
- Health department requirements for food service applications
Total cost of ownership for commercial applications
Commercial water heating cost over 10-year ownership:
- Initial purchase + installation: $3,500-7,000 typical
- Annual energy cost: $800-2,000 depending on usage and fuel prices
- Annual service contract: $400-800
- Major service events (anode, valve replacement): $300-800 every 4-6 years
- Total 10-year cost: $15,000-35,000
When to consider replacement vs repair
Commercial water heater replacement triggers:
- Tank wall failure (immediate replacement required)
- Multiple component failures within 6-12 months
- Total repair cost approaching 40% of replacement cost
- Service intervals decreasing significantly (indicates accelerating wear)
- Approaching or past warranty period in heavy commercial use
Honest assessment
Triton ProMax Commercial Gas is competent light commercial water heating equipment at competitive pricing. For heavy commercial applications where extended downtime is costly, established brands (Bradford White, A.O. Smith, Rheem) with broader service networks typically pencil better despite higher upfront cost. For light commercial where Triton\'s pricing advantage is meaningful, ProMax Commercial Gas delivers adequate service.