Direct-Fired Water
Heaters
ICA Heating carries the full Patterson-Kelley direct-fired water heater line — condensing firetube, instantaneous, and non-condensing models. Factory-authorized sales, engineering, installation, and 24/7 service across New Jersey and New York.
Independent Operation.
No Boiler Required.
Direct-fired water heaters have their own burner and heat water directly — they operate independently without requiring a separate boiler as a heat source. This makes them the simplest path to dedicated DHW for facilities of any size.
Patterson-Kelley offers the broadest direct-fired water heater line in commercial heating — from the flagship SOLIS W-Series condensing firetube to the scale-resistant MODU-FIRE FD W for hard-water environments. Every model features NURO smart controls with remote monitoring and compact footprints designed for tight mechanical rooms.
As a factory-authorized dealer, ICA provides complete DHW system engineering — from peak demand analysis and equipment sizing through installation, startup, and decades of preventive maintenance.
An expansion of the flagship SOLIS family into dedicated domestic hot water — the SOLIS W-Series brings firetube condensing technology to high-demand DHW applications. 316L stainless steel construction delivers superior corrosion resistance and long service life in potable water systems.
- Models: SLW1000 – SLW3000
- Efficiency: Up to 97% thermal efficiency (CSA certified)
- Turndown: 10:1 mechanical turndown
- Heat Exchanger: 316L stainless steel tube & tube sheet, 304L shell
- Controls: NURO touch-screen with remote monitoring
- Rating: ASME Section IV HLW rated
Patterson-Kelley's first instantaneous condensing firetube water heater — delivering unlimited hot water on demand without storage tank losses. Built-in recirculating pump ensures consistent output. Ideal for facilities with high peak demand and limited mechanical room space.
- Models: HC800, HC1000
- Efficiency: Up to 97% thermal efficiency
- Turndown: 5:1 turndown ratio
- Warranty: 10-year heat exchanger, 20-year shell
- Certifications: ASME/CSA, NSF compliant, ASHRAE 90.1
- Controls: NURO touch-screen with NURO Connect app
A stainless steel hot water supply boiler purpose-built for domestic hot water applications. The SONIC SCD combines the proven SONIC platform's compact footprint with 316L stainless construction and DHW-specific controls — 60% smaller than leading competitors.
- Models: SCD650 – SCD1000
- Efficiency: Up to 97% certified efficiency
- Turndown: Up to 7:1 turndown ratio
- Heat Exchanger: Stainless steel, resists corrosive condensation
- Footprint: 60% smaller than leading competitors
- Controls: NURO touch-screen with NURO Connect app
A vertical design utilizing a radial-fired, fan-assisted burner for efficient DHW production. Sealed combustion permits installation in negative-pressure environments. Compact enough to pass through a 30-inch doorway — ideal for retrofits in tight or inaccessible mechanical rooms.
- Models: W750 – W2000
- Efficiency: 85% thermal efficiency (CSA certified)
- Burner: Radial-fired, fan-assisted sealed combustion
- Heat Exchanger: Integral finned copper water tubes
- Footprint: Fits through a standard 30-inch doorway
- Controls: NURO touch-screen with modulation
Full modulation control combined with forced-draft combustion and scale-resistant construction. The MODU-FIRE FD W Series delivers reliable DHW in hard-water environments where scale buildup is a primary concern for equipment longevity. Finned tubes machined from solid copper outperform the competition.
- Combustion: Forced-draft with full modulation control
- Construction: Scale-resistant design for hard-water areas
- Heat Exchanger: Copper finned-tube — machined from solid copper
- Application: Hard-water environments, high-temp DHW
- Controls: NURO touch-screen with BAS integration
More Than Equipment.
Complete DHW Partnership.
When you buy a Patterson-Kelley water heater through ICA, you get factory-authorized support from system design through decades of service — not just a box on a truck.
Built for Every
DHW Demand Profile
From high-peak hotel demand to continuous healthcare sanitation requirements — Patterson-Kelley direct-fired water heaters serve the full spectrum of commercial DHW applications.
Common Questions About
Direct-Fired Water Heaters
Quote or Design?