Boilers

As water heater experts, Water Heaters Only specializes in professional-grade boiler systems tailored to commercial, industrial, and multi‑unit residences. Our expertise ensures you get top-performing, reliable solutions backed by unmatched support.

Commercial Boiler Solutions for Every Industry

Whether you're retrofitting, scaling up, or specifying new installations, Water Heaters Only has the boiler solution for your professional project.

Scalable Systems for Multi-Unit Properties and Facilities

• High‑Efficiency Output: Ideal for apartment complexes, dormitories, and commercial buildings requiring simultaneous heating and hot‑water demands
• Modular Cascading Designs: Scale capacity by combining multiple boilers-perfect for phased installations and future expansion.
• Centralized Control & Building Integration: Seamless integration with building management systems (BMS), reducing downtime and optimizing maintenance schedules.

Specialty Boilers for Healthcare, Hospitality, and Industrial Use

• Healthcare‑Grade Reliability: Commercial units engineered to meet rigorous hospital standards for sterilization, laundry services, and central heating.
• Hospitality Comfort & Efficiency: Boilers designed for hotels and resorts offering consistent hot‑water flow and heating for guest comfort.
• Industrial Durability & Capacity: Heavy‑duty systems capable of supporting high‑demand processes in manufacturing, food‑service, and process‑steam environments.

Condensing Vs. Non-Condensing Boilers

Explore the benefits and distinctions of condensing and non‑condensing boilers to help you choose the right system for your project.

Condensing

• Maximum Efficiency: Recovers latent heat from exhaust gases, achieving efficiency ratings up to 98%.
• Lower Fuel Bills & Emissions: Ideal for gas‑fired boilers, this technology significantly cuts natural gas consumption.
• Compact Footprint: Smaller flue requirements and lighter design simplify retrofits in existing mechanical rooms.

Non-Condensing

• Proven Durability: Time‑tested robustness with simpler control systems and lower initial cost.
• Ease of Servicing: Straightforward inspection and maintenance routines without condensate‑handling equipment.
• Ideal for Large‑Scale or Retrofit Projects: Suitable when condensing flue venting isn't feasible or natural gas prices are stable.

Trusted Boiler Brands, Backed by Industry Expertise

Water Heaters Only partners with superior brands known for performance, certification, and service, ensuring your projects meet local codes and stay efficient for years.

Top-Tier Manufacturers with Proven Performance

We source from industry leaders like Amus, Rinnai, Rheem/IBC, Thermal Solutions, Bryan Boilers, and Burnham Commercial Boilers, known for delivering long-term value and consistent performance. We recommend brands that meet demanding commercial standards across diverse applications, from high-efficiency condensing units to robust systems built for industrial-scale heating.

You'll find models featuring:

• Advanced diagnostic and control technology for easy integration and monitoring
• High turndown ratios that adapt to fluctuating demands
• Exceptional build quality backed by rigorous testing and certification
• Energy-efficient designs that support sustainability goals and reduce operating costs
• Versatile configurations for wall-hung, floor-standing, or modular cascade installations

You can always rely on our curated selection of brands to meet code, exceed expectations, and perform under pressure.

Warranties and Ongoing Support You Can Count On

We offer standard and extended warranties to ensure comprehensive coverage, should you need it. With factory-trained technicians and 24/7 emergency support, we provide quality support and maintenance. 

Built for Code Compliance and Long-Term Efficiency

Not only do systems meet or exceed code compliance and energy regulations, but we also offer upgrade-friendly designs that are easily retrofittable for automation, remote sensing, and mobile monitoring. 

How Boilers Work

Boilers convert fuel—typically natural gas—into thermal energy through a combustion process.

• Fuel Source: Most commercial boilers use gas, but electric models exist for specialized settings.
• Heat Transfer: Fuel combustion warms water or steam via heat exchangers.
• Distribution: Heated water or steam circulates through piping and radiators or terminal units to deliver warmth or hot water.
• Controls & Safety: Advanced control systems regulate temperature, pressure, and combustion; integrated safety features protect equipment and personnel.

Got questions about selecting the right boiler? Our team of certified experts is ready to assist. We'll walk you through performance metrics, utility considerations, and installation best practices. Contact us today to get started!