Indirect Water Heaters


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"warranted not to leak for as long as you own your home"

Indirect Water Heaters are Storage Tank minus the flames underneath or heating elements, which makes them LIFETIME WARRANTY.

Indirect water heaters offer a more efficient choice for most homes, even though they require a storage tank. An indirect water heater uses the main furnace or boiler to heat water that's circulated through a heat exchanger in the storage tank. The energy stored by the water tank allows the furnace/boiler to turn off and on less often, which saves energy. Therefore, an indirect water heater is used with a high-efficiency boiler and well-insulated tank can be the least expensive means of providing hot water.

On-Demand water heaters (tankless or instantaneous), heat water directly without the use of a storage tank. Therefore, they avoid the standby heat losses associated with storage water heaters. When a hot water tap is turned on, cold water travels through a pipe into the unit and activates the flames. Either a gas burner or an electric element heats the water. As a result, On-Demand water heaters deliver a constant supply of hot water. Typically, On-Demand water heaters provide hot water at a rate of 2-5 gallons (7.6-15.2 liters) per minute. Gas-fired units produce higher flow rates than electric ones.

Some benefits of Indirect water heaters are:

  • Durable Corrugated Stainless Steel Tank
  • Completly insulated with 2 inches of HCFC free water blown polyurethane foam
  • Sturdy plastic exterior jacket
  • Limited Lifetime Warranty for Residential Applications & 15 year Warranty for Commercial

Contact Our Team

Find out more about our range of indirect water heaters by reaching out to Mass Plumbing & Heating. We offer 24/7 emergency plumbing services, after regular hours, and even during holidays. Call us or fill out the online form to schedule your appointment with our team. We look forward to working with you.

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Contact Our Team Today

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Reach out to Mass Plumbing & Heating right away to address any HVAC or plumbing concern. Call us or fill out the online form to schedule your appointment. We serve Hudson, MA, and the surrounding areas.