Boilers

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High-Performance Boilers for Every Application

Voomi Supply offers a wide selection of boilers and hydronic heating systems engineered for efficiency, durability, and reliable performance. Whether you’re handling a residential install or sourcing for a multi-zone commercial project, our catalog covers everything from complete units to precision-matched components and accessories.

Explore a Full Range of Boiler Types

Our inventory includes gas-fired, electric, and condensing boilers from trusted manufacturers. Choose from standard-efficiency models or upgrade to high-efficiency condensing boilers that recover heat from exhaust gases—ideal for energy-conscious retrofits and LEED-certified buildings. We offer options in multiple BTU outputs and configurations to meet the demands of both light-duty and heavy-duty heating systems.

Precision Controls and Components

A great boiler is only as good as the components supporting it. That’s why we stock hundreds of accessories designed to maximize efficiency and system life. Find thermostatic mixing valves, low-water cutoff switches, zone control panels, circulator pumps, and expansion tanks from leading names in HVAC. Our lineup features trusted components used across the industry, including brands like Honeywell, Caleffi, Raypak, Tekmar, and Dwyer—ensuring seamless compatibility and long-lasting performance.

Commercial & Residential Solutions

Whether you're heating a two-bedroom home or a 50,000-square-foot facility, we have solutions that scale. For commercial needs, explore condensing boilers with stainless steel heat exchangers, advanced modulation controls, and built-in redundancy options. For residential projects, we carry compact, wall-hung models with simple installation and maintenance features. Our systems are built to handle zoning, radiant heating, indirect water heating, and more.

All-in-One Hydronic Heating Supply

Beyond boilers, Voomi Supply supports the full lifecycle of your hydronic heating setup. Our catalog includes air separators, pressure relief valves, manifold systems, pipe insulation, and sensors - everything you need to build a complete, reliable, and efficient system. We also maintain real-time inventory from major distributors so you can get parts fast and keep your project moving forward.

Your HVAC Partner at Scale

With over one million SKUs and deep technical knowledge, Voomi Supply is more than a parts distributor - we’re your partner in HVAC success. Our customer support team can assist with product matching, spec verification, and sourcing hard-to-find items. We also offer competitive pricing, fast shipping, and dedicated service for contractors, facility managers, and procurement teams.

Frequently Asked Questions

Boilers come in several major types based on design and heat transfer method, including fire-tube, water-tube, and electric boilers. Fire-tube boilers are common for low to medium pressure applications, water-tube boilers handle high pressure and capacity, and electric boilers provide emission-free, quiet operation where electricity is available.

Boilers and furnaces each have strengths. Boilers typically offer more even heat distribution and higher energy efficiency, especially in hydronic systems, while furnaces may provide quicker, forced-air heating and lower initial installation costs. Efficiency, ductwork availability, and comfort preferences are key deciding factors.

With proper maintenance and operation, boilers generally last about 15–25 years, with some models reaching the higher end of the range depending on usage, fuel type, and service frequency.

For residential heating, fire-tube and cast-iron hot water boilers are among the most common types due to their robust performance and suitability for hydronic heating systems in homes.

Proper sizing depends on building heat loss calculations, climate zone, insulation levels, and the type of hydronic distribution system (radiators, baseboards, radiant floor). Undersized boilers can underserve your space, while oversized units waste fuel and shorten equipment life.

Routine maintenance includes flushing and treating boiler water to prevent corrosion, checking and cleaning burners and heat exchangers, inspecting pressure/temperature controls, and ensuring proper venting. Scheduled annual service keeps efficiency high and reduces unexpected downtime.

Yes, many modern boilers are designed for seamless integration with existing hydronic heating systems, including radiant floors, baseboards, and radiator circuits, provided the system is compatible in terms of pressure, temperature range, and connection type.

Residential boiler costs vary depending on type and size:

  • Electric boilers: $1,500 – $5,000.
  • Gas boilers: $3,000 – $8,000+.
  • Installed cost: $5,000 – $15,000+.

Higher-efficiency models may cost more upfront but reduce long-term energy expenses.

Heat pumps are generally more energy-efficient, as they transfer heat rather than generate it.

  • Heat pumps: Can deliver 2–3 times more energy than they consume.
  • Gas boilers: Typically 80–95% efficient.

However, gas boilers may perform better in extremely cold climates, while heat pumps excel in moderate conditions.

Boilers can be powered by different energy sources:

  • Gas (natural gas or propane): Most common for residential use.
  • Electric: Cleaner and quieter, but may have higher operating costs.
  • Oil (less common): Used in some regions.

The best option depends on availability, cost, and efficiency goals.

Some older gas boilers use standing pilot lights, while modern systems typically use electronic ignition systems, which are more energy-efficient and reliable.

Yes. Modern boilers are significantly more efficient than older models, especially:

  • Condensing boilers: Can exceed 90% efficiency.
  • Improved controls and heat exchangers reduce energy waste.

Upgrading to a newer system can lower heating costs and improve performance.