Heat Pump System Installation in Frederick, Maryland
A homeowner in Frederick, Maryland was ready to replace their existing heating and cooling equipment with a new, more efficient system. The project called for a full heat pump installation — outdoor unit, air handler, and supporting components — along with a whole-home humidifier added in the same visit.
Mychall installed a Lennox Merit ML14KP1 2.5-ton single-stage heat pump paired with a CBK45UHET air handler in an upflow/horizontal configuration. The system runs on R-454B refrigerant and is rated at 15.5 SEER2, 12.8 EER2, and 7.8 HSPF2 — meeting current efficiency standards for both cooling and heating seasons. Cooling capacity comes in at 29,600 BTU with 27,600 BTU on the heating side, right-sized for the home. The installation included removal of the old equipment, duct modifications, drain modifications, and a new thermostat. Mychall also installed an Aprilaire 600M bypass humidifier, a duct-mounted unit suited for homes under 5,000 square feet, which adds moisture to circulated air through a water panel — addressing dry indoor air during heating season without a separate service call.
The completed system carries a 10-year parts warranty on the equipment and a 3-year labor warranty covering the installation. The project also qualified for an EmPower Maryland utility rebate through Pepco, applied to the installation. With a properly sized, high-efficiency heat pump in place and whole-home humidity control added, the homeowner has year-round comfort covered under strong warranty protection.
Cold Climate Heat Pump Installation in Frederick, MD
A Frederick, MD homeowner had been running a 2009 Trane XL16i 4-ton heat pump that had reached the end of its service life. The system was throwing a fault code and no longer operating reliably — a clear signal that repair wasn’t the right path forward. The homeowner decided to move ahead with a full replacement and chose a Lennox cold climate system over other options that had been quoted.
Mychall installed a Lennox Elite EL18KSLV 4-ton variable-capacity cold climate heat pump paired with a Lennox Merit CBK45UHVT air handler and a 15 kW electric heat kit with integrated circuit breaker. The outdoor unit runs on R-454B refrigerant and carries an AHRI-certified SEER2 rating of 18.0 and an HSPF2 of 9.5 — a meaningful efficiency step up from the outgoing system. The variable-capacity compressor gives the system finer control over temperature and humidity than a single-stage unit can deliver, and the EL18KSLV is ENERGY STAR 6.1 Cold Climate Certified, meaning it’s built to maintain heating output even when outdoor temperatures drop well below freezing. Inside, Mychall modified the return ductwork with a new return box under the air handler, updated the condensate drainage with a new emergency drain pan, and relocated a new Ecobee thermostat to a position near the kitchen — a practical improvement over wherever the old one sat. The old equipment was removed as part of the same visit.
With the new system commissioned, the homeowner has a properly sized, high-efficiency heat pump that’s built for the Mid-Atlantic’s cold winters. The installation includes a 10-year parts warranty on the equipment and a 3-year BPM labor warranty covering the installation work. The project also qualified for a Potomac Edison Cold Climate Heat Pump Rebate, applied to the project. A one-year service plan was added to keep the new system on a maintenance schedule from the start.
Heat Pump System Installation in Frederick, MD
A homeowner in Frederick, MD had reached the end of the road with their existing heating and cooling system. Following an earlier assessment, it was determined that replacement was the right path forward — the old equipment wasn’t worth repairing, and a properly sized new system would deliver reliable year-round comfort.
Mychall installed a Lennox Merit series heat pump package: a 2-ton ML14KP1 outdoor unit paired with a CBK45UHET air handler in an upflow/horizontal configuration. The system runs on R-454B refrigerant and is rated at 14.3 SEER2 and 8.1 HSPF2, meeting current efficiency standards for both cooling and heating. A 10 kW ECB45-10CB electric heat kit with integrated circuit breaker was added to the air handler to handle supplemental heating demand during colder stretches. The installation included removal of the existing equipment, duct modifications, drain modifications, and a new thermostat. Serial numbers were documented for both the air handler and the outdoor unit at completion.
With the new system in place, the homeowner has a properly sized, single-stage heat pump handling both heating and cooling from one integrated package. The installation is backed by a 10-year parts warranty on the equipment and a 3-year labor warranty covering BPM’s installation work. The project also qualified for a Potomac Edison utility rebate, applied to the installation.
Ductless Mini Split Installation in Frederick, MD
A homeowner in Frederick, MD wanted to add reliable heating and cooling to a space that wasn’t served by the home’s existing duct system. A ductless mini split offered a clean solution — no ductwork required, and the ability to heat and cool the room independently year-round.
Steve installed an LG 12,000 BTU single-zone wall-mounted heat pump system, comprising the KUSAE121A outdoor condenser and KNSAE121A indoor wall unit. The system runs on R-32 refrigerant, which carries a lower global warming potential than older refrigerants, and is rated up to 18 SEER2 for efficient operation. The existing 20-foot refrigerant line set — 1/4″ liquid and 3/8″ suction tubing — was reused and kept insulated throughout. New high-voltage wiring was run to the indoor fan coil, and a new vinyl equipment pad was set under the outdoor unit. The condensate drain was routed gravity-fed to the exterior using the existing path. Steve adjusted the refrigerant charge to manufacturer specifications before commissioning the system.
With the installation complete, the homeowner now has independent climate control in the space — cooling in summer, heating in winter — without touching the existing duct system. As an LG Pro Dealer installation, the system qualifies for up to a 12-year extended parts and compressor warranty through LG when properly registered, covering the equipment itself. That coverage is a direct benefit of having the system installed by a certified dealer rather than a general contractor.
AC, Furnace & Coil Installation in Frederick, MD
A homeowner in Frederick, MD was ready to replace their aging heating and cooling equipment with a matched system that would carry them through the next decade. The project called for a full HVAC replacement — outdoor condensing unit, evaporator coil, and gas furnace — along with a whole-home humidifier.
Mychall installed a Lennox Merit ML17XC1 4-ton single-stage air conditioner paired with a cased aluminum evaporator coil and a Lennox Merit ML180UH110E60C 80% AFUE gas furnace rated at 110,000 BTUh. The system runs on R-410A refrigerant and carries an AHRI-certified rating of 15.6 SEER2 and 13.0 EER2. Duct and drain modifications were made during the installation to properly integrate the new equipment, and a new thermostat was included. Mychall also installed an Aprilaire 600M bypass humidifier — a duct-mounted unit designed for homes under 5,000 square feet — which feeds moisture into the airstream through a water panel to maintain consistent indoor humidity through the heating season. Existing equipment was removed as part of the same visit.
With the new system in place, the homeowner has a properly matched heating and cooling setup backed by a 10-year parts warranty on the equipment and a 3-year labor warranty covering the installation. The project also qualified for a Potomac Edison utility rebate through the EmPower MD program, applied to the project.
Cold Climate Heat Pump Installation in Frederick, MD
A homeowner in Frederick, MD was ready to move away from their existing heating and cooling setup and upgrade to a modern, all-electric heat pump system. The goal was a high-efficiency solution capable of handling Maryland winters without falling back on supplemental heat — a real-world requirement that rules out standard heat pumps and points squarely toward cold climate equipment.
Steve installed a Lennox Elite EL18KSLV 3-ton cold climate heat pump paired with a Lennox Merit CBK45UHVT variable-speed air handler — both factory-configured for R-454B refrigerant, which meets 2025 low-GWP compliance requirements. The outdoor unit carries an 18.0 SEER2 and 9.5 HSPF2 rating under AHRI certification, with the variable-capacity compressor providing tighter temperature and humidity control than single-stage equipment. The air handler’s all-aluminum Quantum Coil resists corrosion, and its variable-speed blower keeps airflow consistent without the temperature swings common to fixed-speed systems. A 10 kW Lennox ECB45 electric heat kit was added to the air handler for supplemental heat capacity on the coldest days. Steve also installed a new ecobee Wi-Fi thermostat and completed duct and drain modifications as part of the same visit. Existing equipment was removed and hauled away.
The completed system is ENERGY STAR 6.1 Cold Climate Certified. The installation included a 10-year parts warranty on the equipment and a 3-year labor warranty covering repairs including refrigerant. The project also qualified for the EmPower MD utility program through Potomac Edison, applied as a rebate on the installation. With a properly sized, cold-climate-rated system now in place, the homeowner has efficient heating and cooling coverage year-round.
