Commercial Heat
Exchangers
ICA Heating is an authorized Maxi-Therm distributor serving New Jersey and New York. Vertical flooded steam heat exchangers for domestic hot water, building heat, clean steam generation, and process applications — factory-assembled on single skids with full BAS integration.
Vertical Flooded Design.
Maximum Energy Extraction.
Maxi-Therm's patented vertical flooded heat exchanger design keeps full, uncontrolled steam pressure inside the shell at all times — with the control valve on the condensate side. This allows you to extract both the latent heat and a significant portion of the sensible heat from every pound of steam, generating 5–20% energy savings over conventional heat exchanger designs.
Every Maxi-Therm system ships as a factory-assembled, pre-piped, pre-wired skid package — replacing an entire conventional mechanical room with a single unit. This reduces installation cost by 20%, saves 40% of floor space, and simplifies ongoing maintenance for the life of the system.
As an authorized distributor, ICA provides complete Maxi-Therm system engineering, equipment selection, installation coordination, startup, and 24/7 lifecycle service across New Jersey and New York.
A single skidded vertical flooded steam heat exchanger with electronic condensate control valve, safety shut-off valve, start-up valve, and integrated control panel. The feedback system controls liquid set point via the condensate side — keeping full steam pressure inside the heat exchanger at all times for maximum energy extraction.
- Type: Vertical flooded U-tube, single unit
- Control: Electronic condensate-side feedback control
- Includes: Control valve, safety shut-off, start-up valve, panel
- Mounting: Factory-assembled on structural skid
Two or three heat exchangers installed in parallel on one structural base — each with its own condensate control valve, safety shut-off valve, start-up valve, and individual control panel. Provides built-in redundancy and the ability to service one unit while the others remain online.
- Type: Vertical flooded U-tube, 2 or 3 units in parallel
- Control: Individual condensate-side feedback per unit
- Redundancy: Service one unit while others remain online
- Mounting: All units on single structural base
Two heat exchangers at 100% of required capacity installed in series — both are always fully or partially redundant, eliminating the need for lead/lag sequencing. The Zerolag design ensures uninterrupted hot water delivery even during maintenance or equipment failure.
- Type: Vertical flooded U-tube, 2 units in series
- Capacity: Each unit at 100% — full redundancy
- Advantage: No lead/lag operation required
- Application: Critical facilities requiring zero downtime
Vertical double-wall flooded steam-to-hot-water heat exchanger with a three-way non-electric blending valve. The VFFF delivers instantaneous domestic hot water from 0 to max capacity with a temperature differential of just ±4°F — no storage tank required. The self-contained mechanical blending valve eliminates the need for electric or pneumatic equipment.
- Type: Vertical double-wall flooded, instantaneous
- Accuracy: ±4°F temperature differential
- Blending: Self-contained mechanical — no electricity needed
- Pressure: 5–40 psig steam operating range
The electronic version of the VFFF — a vertical double-wall flooded heat exchanger with an electronic three-way control valve and BACnet-enabled control panel. Provides precise temperature control with full building automation system integration for remote monitoring and data logging.
- Type: Vertical double-wall flooded, instantaneous
- Control: Electronic three-way valve with BACnet panel
- Integration: BACnet (IP/MSTP), Modbus (RTU/TCP)
- Application: Hospitals, schools, food processing, labs
A complete duplex high-pressure steam-to-domestic-hot-water system with pre-mounted master mixing valve per local code, using double-wall flooded steam heat exchangers. The Side-Arm series combines a water-to-water heater and steam-to-hot-water shell-and-tube heat exchanger on one compact skid — ideal for new building projects requiring building heat and reheat.
- Type: Duplex flooded HX with master mixing valve
- Design: Complete factory-assembled skid package
- Includes: DHW, building heat & reheat on one skid
- Advantage: Small footprint, low maintenance costs
A shell-and-tube steam-to-steam heat exchanger that uses higher-pressure boiler steam to generate lower-pressure clean steam free of boiler water treatment chemicals. Built with 316L stainless steel for potable and sanitary applications — essential for hospital sterilization, pharmaceutical processing, and humidification systems.
- Type: Shell-and-tube steam-to-steam generator
- Material: 316L stainless steel (304 also available)
- Tubes: ½" OD × 0.049" wall SA-249-TP316L U-tubes
- Rating: ASME stamped — 150 psig @ 400°F
Factory-assembled, fully integrated flooded heat exchanger systems for building steam heating and hydronic distribution. Maxi-Therm's single-skid design replaces an entire conventional mechanical room — eliminating field-assembled piping, reducing installation cost by 20%, saving 40% of floor space, and consuming 5–8% less energy than traditional steam systems.
- Design: Factory-assembled, single-skid package
- Savings: 20% installation cost, 40% space, 5–8% energy
- Application: District steam, campus heating, hydronic systems
- Advantage: No tempering system or cold-water pipes required
Why Vertical Flooded
Outperforms Conventional
Maxi-Therm's vertical flooded design delivers measurable advantages in energy efficiency, installation cost, space savings, and system reliability.
Built for Every
Steam Application
From hospital sterilization to district steam conversion — Maxi-Therm heat exchangers serve the full spectrum of commercial and industrial steam heating applications.
Common Questions About
Heat Exchangers
Quote or Design?