Every install and every major service call at Rivic gets photo-documented from three angles: pre-work condition, mid-install verification (line-set brazing, gas leak-test, static pressure baseline), and post-commissioning verification (combustion analysis printout, superheat/subcooling readings, permit signoff). This is not marketing. It is what post-2018 Merrimack Valley permit trails, homeowner insurance disclosure requirements, and manufacturer warranty registration all demand. What you see below is a sample of that documentation across the past three years of work in Methuen, Lawrence, Andover, North Andover, Dracut, Haverhill, and the New Hampshire border towns of Salem and Pelham.
The Merrimack Valley runs on hydronic heat. Cast-iron radiators in pre-1930 triple-deckers, forced hot water baseboard in mid-century Capes, and modulating-condensing wall-hung boilers in newer construction. Rivic installs Weil-McLain, Buderus, Viessmann, Peerless, Burnham, and Slant/Fin residential systems, and handles full oil-to-gas conversions including chimney reline, gas piping, and combustion air makeup.

Tower Hill, Methuen — Weil-McLain CGA-4 replacement in a 1898 Victorian. Prior system was a 1974 American Standard oil boiler venting through a 6-inch clay-lined chimney. Full conversion included chimney reline with 5-inch stainless steel, new gas piping from meter through basement to boiler with Everflex tracer wire, and a Watts 210F air scoop with Amtrol AX-15 expansion tank sized to the total system water volume of 42 gallons.

Bradford, Haverhill — Buderus GB142/45 with Logamatic 2107 outdoor reset control replacing a 1988 Weil-McLain Gold GV5 oil boiler in a 1924 four-square Colonial. Primary-secondary near-boiler piping isolates the low-loss header, letting the modulating burner ramp from 20% to 100% output without disturbing the two-zone baseboard circulator staging. Chimney abandoned; direct-vent concentric PVC terminates two feet above snow-line grade per Buderus install manual.

Downtown Lawrence — Peerless Series 63 cast-iron sectional boiler serving a 1912 three-family triple-decker on Prospect Street. Three individually-zoned Taco 0015 circulators feed the three tenant units, each with its own thermostat and Taco 571 zone valve. Low-water cutoff piped to a floor drain; ASME-rated 30 psi pressure relief valve terminates within 6 inches of floor per Massachusetts amendments to the mechanical code.
The January 2025 refrigerant transition ended new R-410A residential installations. Rivic installs R-454B/R-32 compliant condensers across all major manufacturers — Carrier, Trane, Lennox, Rheem, Bryant, and Goodman. Line sets sized against Manual S selection and the manufacturer’s AHRI-matched indoor coil, not the box on the pallet.

Forest Lake, Methuen — Carrier Infinity 24VNA6 variable-speed R-454B condenser paired with a matched CNPVP indoor coil and Infinity System Control. Sized to a 2.5-ton design load calculated by ACCA Manual J for a 1,800 square foot 1962 split-level. Prior system was a 2010 Bryant 3.5-ton single-stage that short-cycled without dehumidifying — the correct selection dropped a full ton and added variable-speed staging.

Shawsheen Village, Andover — Trane XR17 two-stage R-454B condenser matched to a Trane XR95 upflow gas furnace on a 1954 Colonial. Line-set routed through a mudroom soffit, brazed with nitrogen purge at 3–5 psi to prevent copper oxide formation on the interior wall. Pressure-tested at 500 psi nitrogen for 24 hours before evacuation and R-454B charge to manufacturer’s specification.
Massachusetts pays homeowners to convert to cold-climate heat pumps. The Mass Save Whole-Home Heat Pump rebate can reach $10,000 per home, and the Mass Save HEAT Loan finances the balance at 0% interest for seven years. Rivic is a Mass Save Heat Pump Installer (HPI) and handles the rebate paperwork at the point of quote. All installs use cold-climate variable-capacity equipment rated for 100% capacity at 5°F ambient — Mitsubishi Hyper-Heat, Bosch IDS 2.0, Carrier Infinity Extreme Heat, or Daikin Aurora.

Arlington District, Methuen — Mitsubishi MXZ-4C36NAHZ2 Hyper-Heat outdoor unit serving four MSZ-FS indoor cassettes across three floors of a 1902 triple-decker. Wall-mounted outdoor bracket at 4 feet above finished grade clears typical Merrimack Valley snowfall accumulation. Line-hide painted to match the trim — a detail that matters in the Searles-Tenney-Nevins-adjacent architectural context.

Kenwood, Dracut — Bosch IDS 2.0 20 SEER2 inverter-driven heat pump serving a 1,650 square foot 1978 ranch. Backup heat: existing gas furnace held in reserve for winter design-day emergencies below the Bosch’s 100% capacity threshold at 5°F. Homeowner qualified for the Mass Save Partial-Home Heat Pump rebate of $4,000 given the dual-fuel configuration.
Triple-deckers, plaster-walled 1920s bungalows, and finished attic spaces without duct pathways are ductless country. Rivic installs Mitsubishi Electric MSZ-FS wall cassettes, MLZ ceiling cassettes, Fujitsu Halcyon HFI, and Daikin Aurora heat-pump ductless systems, with dedicated attention to line-set routing that respects historic architectural detailing.

Spicket Falls Historic District, Methuen — Mitsubishi MSZ-FS18NA 18,000 BTU/hr wall cassette in a 1885 mill-worker apartment. Line-set routed through interior wall cavity between studs to avoid any exterior line-hide on the brick-faced facade — a Historic District Commission requirement in the Searles-Tenney-Nevins-overlay zone.
Rivic handles light-commercial packaged rooftop units for offices, retail, and small medical/dental buildings along the Route 213, Route 114, and Route 28 corridors. Standard equipment: Carrier 48HC, Trane Precedent, Daikin Rebel, Bryant Preferred. Every RTU install includes economizer commissioning to ASHRAE 62.1 outdoor air rates for the actual occupant load, not the box default.

Route 213 corridor, Methuen — Trane Precedent 5-ton rooftop packaged unit replacing a 2012 Bryant single-stage on a 2,400 square foot insurance office. Includes factory-installed economizer commissioned to 15% minimum outdoor air per ASHRAE 62.1-2019 for the 12-person occupant load. Existing curb reused after inspection; roof penetrations reflashed with EPDM boots.
Every diagnostic call generates a documented record. What the customer sees on the invoice reflects what the meter and camera saw on-site.
The 225 Broadway office in central Methuen keeps a full portfolio archive of Merrimack Valley installations from 2020 forward. Stop in for a portfolio review before signing a quote, or ask for comparable-neighborhood photo references when you call. Whether you’re planning a Weil-McLain conversion in Tower Hill, a Mitsubishi Hyper-Heat retrofit in the Arlington District, or an R-454B condenser install in Forest Lake, we can show you the reference work.