Frequently Asked Questions

For most Long Island homes in 2026, the Ecobee Smart Thermostat Premium is the top pick — best-in-class occupancy sensing, built-in air quality monitor, and compatibility with virtually any HVAC system. The Google Nest Learning Thermostat (4th gen) is a close second with a cleaner interface. Honeywell T10 Pro leads for whole-home multi-zone.

A Carrier heat pump installation on Long Island typically runs $9,800 to $18,500 depending on capacity, SEER2 rating, and whether ductwork is being added or reused. The Infinity Series 24VNA6 variable-speed unit sits at the top of that range and qualifies for PSEG-LI Home Comfort rebates up to $4,000 (market) or $7,500 (income-qualified).

A Comfortmaker gas furnace installed on Long Island typically runs $4,800 to $8,500. Comfortmaker sits in the value tier under the ICP (Carrier) umbrella, so pricing is often 10–20% below equivalent Carrier or Bryant units with similar core components.

A single-zone Bosch mini-split installed on Long Island typically runs $4,200 to $6,900. Multi-zone systems (2–5 heads) range from $9,000 to $19,500 depending on the outdoor unit and head count. Bosch prices between value brands and Mitsubishi/Daikin.

A Luxaire central AC and furnace combo installed on Long Island typically runs $8,400 to $14,200. Luxaire sits in the value tier under Johnson Controls — sharing platforms with York and Coleman HVAC.

For most Long Island homes in 2026, Rheem is the top overall pick — broadest lineup (tank, tankless, heat pump), strongest parts availability, and competitive pricing. Bradford White is the contractor's choice for premium tank builds. Rinnai leads for gas tankless. A. O. Smith is a strong value alternative.

A single-zone Mitsubishi mini-split installed on Long Island typically runs $4,800 to $7,500. Multi-zone systems (2–5 heads) range from $9,500 to $22,000 depending on the outdoor unit and head count. Hyper-Heat H2i units cost slightly more but qualify for PSEG-LI rebates.

A single-zone Samsung mini-split installed on Long Island typically runs $3,900 to $6,500, generally 10–15% below Mitsubishi with strong warranty coverage. Multi-zone systems range from $8,500 to $18,000 depending on head count and capacity.

A Slant/Fin boiler installation on Long Island typically runs $6,800 to $12,500 depending on model — the Sentry cast-iron atmospheric line is the value pick; the Concept CHS condensing line sits at the top of the range.

A Ducane central AC and furnace combo installed on Long Island typically runs $8,200 to $13,800. Ducane sits in the value tier under Lennox — sharing core platforms while pricing 15–20% below Lennox-branded equipment.

Laars boiler installations on Long Island typically run $7,500 to $13,000. The Mascot FT combi and NeoTherm commercial-grade lines cost more; the Endurance EBP residential series is more budget-friendly. Complex venting or gas-line changes add to the total.

Boiler rebates depend on your gas or oil utility and change from year to year, so check your utility's current program before you buy. The federal 25C energy-efficiency tax credit that used to cover qualifying boilers ended for equipment installed after December 31, 2025. For installations we complete on Long Island, we check the current utility offers and handle the rebate paperwork.

A Tempstar central AC and furnace combo installed on Long Island typically runs $8,500 to $14,500 depending on tonnage, efficiency (SEER2/AFUE), and whether ductwork is being modified. Tempstar prices roughly 10–20% below Carrier with shared internals.

Viessmann boiler installations on Long Island typically run $10,500 to $18,500 — premium territory. The Vitodens 100-W is the entry point; the Vitodens 200-W with communicating controls sits at the top. Complex hydronic zoning and gas-line upgrades push higher.

A Day & Night gas furnace installed on Long Island typically runs $4,700 to $8,700. Day & Night is a Carrier-family value brand, so pricing tracks 10–20% below Carrier/Bryant with shared internals.

A complete NTI boiler installation on Long Island typically ranges from $8,500 to $14,500, depending on model, capacity, and whether venting or gas-line upgrades are required. NTI Trinity Ti and FTV series condensing units sit at the upper end; smaller residential units run less. Home+ Air & Heat provides free written estimates before any work begins.

A Rheem gas furnace installation on Long Island typically runs $5,200 to $9,800 depending on efficiency (80% vs 96% AFUE), capacity, and whether the venting or gas line needs upgrading. Rheem Endeavor Prestige variable-speed units sit at the top of that range.

A Carrier Infinity multi-zone system installed on Long Island typically runs $12,500 to $26,000 depending on the outdoor unit tonnage (2-to-5 tons) and the number of indoor heads (2 to 5). The new R-454B refrigerant models cost slightly more than the retired R-410A units but meet 2025+ EPA requirements.

An Armstrong Air furnace installed on Long Island typically runs $5,000 to $8,900 depending on efficiency (80% vs 97% AFUE), capacity, and whether venting or gas lines need updates. The Pro Series variable-speed sits at the top of that range.

Carrier is the #1 HVAC brand overall for 2026. Founded by Willis Carrier — the inventor of modern air conditioning — Carrier leads in reliability, efficiency, dealer network density, and Long Island parts availability through F.W. Webb and Sid Harvey's distributors. Trane is a close second, especially for homeowners who prioritize durability and longevity over cutting-edge features.