Informed choices.
Lasting comfort.

HOT WATER FOR DAILY LIFE

Water heaters

Tank, tankless and combined heating options.

A storage water heater keeps a supply of hot water ready. Tankless equipment heats water as it flows through the unit. A combi-boiler adds domestic hot water to a home-heating system in a single appliance. The right choice depends on peak usage, available space and the property’s existing utilities.

Combi-boilers: hot water + home heating

These Navien models are combi-boilers, not standalone tank water heaters. The supplied brochure describes compact, wall-mounted NCB-H and NFC-H families with stainless steel heat exchangers; it identifies NFC-H as the higher heating-output family. Optional remote-control accessories are described separately.

View brochure ↗

View brochure ↗

Source: Navien brochure, June 2023. Confirm current models, accessories and warranty terms. Hot-water capacity depends on incoming water temperature and simultaneous demand.

HYDRONIC HEATING

Boilers

Heating-only or a combined heating-and-hot-water solution.

Boilers heat water that circulates through compatible radiators, baseboard or radiant systems. Rinnai’s supplied I-Series brochure covers both heating-only and combi models. It describes condensing operation, compact dimensions and outdoor-reset control, which adjusts heating operation in response to outdoor conditions.

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What we consider

• Your building’s heating demand and existing emitters.
• Whether you need space heating only or domestic hot water too.
• Available space, fuel, venting and system requirements.

The brochure describes proportional control on combi models to support both central heating and domestic hot water. Features depend on the specific model.

Source: Rinnai I-Series brochure, November 2019. This reference does not establish current availability or warranty coverage. Photos identify product families, not a selected capacity for your property.

EQUIPMENT & SYSTEM DESIGN

Heating systems

Comfort starts with the right source of heat.

Furnaces warm air for distribution through ducts. Boilers circulate heated water through compatible emitters. Heat pumps move heat into the building. We consider your existing system, building layout and heating needs before recommending a direction.

EQUIPMENT & SYSTEM DESIGN

Air conditioning

Cooling designed for the whole space.

A central air-conditioning system removes heat from indoor air and releases it outdoors. Duct condition, airflow, sizing and controls all affect room-to-room comfort. We can discuss replacement equipment or a complete system design.

EQUIPMENT & SYSTEM DESIGN

Heat pumps

Heating and cooling from one system.

Heat pumps move heat rather than relying only on generating it. A system can deliver heat indoors in heating mode and move it outdoors in cooling mode. In Southern New Hampshire, model selection should account for winter conditions, the building’s heat loss and any backup heating plan.

EQUIPMENT & SYSTEM DESIGN

Ductless mini-splits

A focused approach to individual spaces.

Ductless systems connect an outdoor unit to one or more indoor units. They can be considered for additions, rooms without ducts or comfort zones. Indoor-unit placement and equipment matching matter; a multi-zone system still has a shared overall capacity.

EQUIPMENT & SYSTEM DESIGN

Ventilation & air balancing

Pay attention to the air, not just the equipment.

Air balancing evaluates how conditioned air is distributed. Ventilation brings outdoor air into a building through an appropriate system. These are different tasks: adjusting room airflow does not automatically provide fresh air. We assess the building’s comfort and airflow concerns before recommending changes.

EQUIPMENT & SYSTEM DESIGN

High-efficiency solutions

The building and equipment work together.

A higher equipment rating is only part of the picture. Appropriate sizing, distribution, controls and maintenance also influence performance. Condensing boilers recover additional heat from combustion exhaust; the system must be designed to support their intended operation.