Full-Service Support for AERCO Boilers & Water Heaters

AERCO equipment is known for precision, modular efficiency, and long-term reliability in commercial hydronic and domestic water systems. At Choice Mechanical Services, we provide complete support for all AERCO boilers, water heaters, and clean steam generators—including diagnostics, repair, system optimization, and installation. Our technicians work on both condensing and non-condensing AERCO systems, and we deliver 24/7 emergency response throughout Indianapolis and Central Indiana.

Choice Mechanical specializes in AERCO boiler and water heater installation, service, and repair for commercial and industrial facilities in Indianapolis and Central Indiana. Our skilled technicians provide end-to-end mechanical solutions — from commercial HVAC and hydronic systems to industrial piping and plumbing, and preventive maintenance agreements — ensuring your AERCO equipment operates efficiently, safely, and reliably year-round.

AERCO Modulex Boilers

Built for high-efficiency hydronic systems, the Modulex line combines multiple independent thermal modules for superior reliability and non-cycling performance. Ideal for applications where space, redundancy, and fuel savings matter.

• BTU Range: 300,000 – 1,000,000
• Fully condensing and modulating design
• Available in B (50 psig) and H (92 psig) configurations
• 151,500 BTU/hr thermal modules operate independently
• Excellent turndown for load-matching efficiency

AERCO KC1000 Boilers & Water Heaters

One of the first high-efficiency commercial gas-fired boilers in the U.S., the KC1000 series is proven in multi-boiler plants and combination heating/domestic hot water systems.

• Natural gas or propane-fired
• Available as boiler or water heater
• Can be retrofitted with low NOx burner
• Supports dual-fuel configurations
• Quiet, efficient, and field-tested for decades

AERCO Indirect-Fired Packaged Water Heaters

These compact, tankless systems offer industry-leading thermal efficiency and precise temperature control—ideal for high-demand commercial environments.

• No storage tanks or blending valves required
• Tight +/-4°F outlet temperature control
• Long service life and low maintenance design
• Small footprint for mechanical room flexibility

AERCO Double Wall Water Heaters

Designed for safety and control, AERCO’s double wall units offer tankless performance with modulating steam valves and feed-forward monitoring.

• Tankless, compact configuration
• Double wall heat exchanger construction
• Feed-forward temperature control system
• Maintains setpoint within +/-4°F

AERCO Clean Steam Generators

These unfired steam generators use potable or treated water to create clean, chemical-free steam for commercial and institutional use—without relying on conventional boiler plant steam.

• Accepts deionized, RO, softened, or tap water
• Unfired design eliminates boiler chemicals
• Compact footprint for tight installations
• Ideal for healthcare and food production facilities

AERCO Benchmark Gas-Fired Boilers

The Benchmark series delivers seasonal efficiency, ultra-quiet operation, and simplified venting in a compact footprint. AERCO’s condensing heat exchangers resist thermal shock and eliminate the need for boiler pump systems.

• Low NOx and dual-fuel options available
• Modulating forced-draft burner
• Fits through standard 30” doorways
• Removable panels for easy maintenance
• Compatible with EMS/BMS systems
• LCD diagnostics and remote access