35 Years of Field Experience · 700+ Five-Star Google Reviews · Licensed in SC & NC · Home of the 12-Year Labor Warranty
Heat Pump Replacement and Installation in North Myrtle Beach
A new heat pump is one of the bigger purchases you'll make for your home, and it deserves straight answers instead of pressure. Coastline replaces and installs heat pumps throughout North Myrtle Beach, Little River and the Brunswick County beach towns. With 35 years of field experience, we've seen what makes a new system last and what makes one fail early, and most of it comes down to two things: the right size and a careful installation. We're a Daikin Comfort Pro dealer, and Coastline is home of the 12-Year Labor Warranty.
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Signs It's Time for a New Heat Pump
Nobody wants to replace a system a year early, and nobody wants to pour money into one that's on its last legs. These are the signs we look for.
The System Is Aging and the Repairs Are Adding Up
A string of service calls, power bills that keep creeping up and rooms that never quite get comfortable are the usual pattern. One repair on an otherwise healthy system is just maintenance. Four repairs in two seasons is a trend.
A Major Part Has Failed
A dead compressor or a leaking outdoor coil on an older system often costs a large share of a new one. At that point, the money usually goes further on new equipment with a fresh warranty.
It Runs on an Older Refrigerant
Federal rules are phasing down the older refrigerants with a high climate impact, and new systems now use alternatives such as R-454B or R-32. Your current system can still be serviced, but refrigerant for older equipment tends to get more expensive over time, and that belongs in the repair-or-replace math.
Your Home Has Changed
An addition, a finished bonus room, new windows or added insulation can change how much heating and cooling your house needs. A system that was the right size fifteen years ago may be the wrong size today.
Sizing a Heat Pump Correctly
Heat pump capacity is measured in tons, and one ton equals 12,000 BTUs of heating or cooling per hour. Most homes use somewhere between 1.5 and 5 tons. Getting this number right matters more than the brand name on the box.
Why Bigger Isn't Better
Oversized Systems
An oversized heat pump cools the house in short bursts and shuts off before it has time to pull moisture out of the air. In a humid coastal home, that leaves you cold and clammy at the same time, and all that starting and stopping wears the parts out faster.
Undersized Systems
An undersized system runs nonstop on the hottest afternoons and leans hard on the backup heat strips in winter, which shows up on your power bill.
How We Size Your System
We use a proper load calculation, the industry's Manual J method, which looks at your square footage, insulation, windows and the direction they face, ceiling heights, air leakage and the condition of your ductwork. It takes longer than reading the label on the old unit, and it's the difference between a system that works and one that just runs.
Choosing Efficiency and Features
Efficiency Ratings
SEER2 for Cooling
SEER2 rates cooling efficiency. Think of it like miles per gallon: the higher the number, the less electricity it takes to cool your house. With air conditioning running most of the year here, efficiency gains add up faster than they do inland.
HSPF2 for Heating
HSPF2 rates a heat pump's heating efficiency the same way. A higher number means more heat for every dollar of electricity, and less reliance on the backup strips.
Single-Stage, Two-Stage and Variable-Speed
A single-stage system has one speed: full blast or off. Two-stage systems add a lower speed for mild days. Variable-speed systems, often called inverter systems, adjust their output in small steps to match what the house needs at that moment. They run longer and quieter at low speed, which keeps temperatures even from room to room and removes more humidity. They cost more up front, and we'll tell you honestly whether the comfort and savings make sense for your home and how long you plan to stay.
What a Proper Installation Includes
Two identical heat pumps can perform completely differently depending on how they're installed. Here's what goes into ours.
The Steps That Matter
We remove the old equipment and dispose of it properly, recovering the old refrigerant as required. The new outdoor unit goes on a level pad or stand, secured against high winds where required, which matters on a coast that sees hurricane season every year. On raised homes, that often means an elevated platform. The refrigerant lines are either replaced or flushed and reused when they're in good shape. Every connection is pressure-tested, and the lines are pulled into a deep vacuum to boil off moisture and air before refrigerant goes in, because moisture left in a system slowly damages it from the inside. Then we set the charge to the manufacturer's specs, run a proper condensate drain, check airflow through your ducts and set up the thermostat.
Permits and Inspections
We handle the permit for your town or county and schedule the inspection, on either side of the state line.
Warranty and Membership Savings
Coastline is home of the 12-Year Labor Warranty; ask which systems qualify. We'll also make sure your equipment is registered with the manufacturer so you get the full parts warranty. Gold Comfort Members save 12% on a new system replacement after one year of membership; see our maintenance plans.
Heat Pump Replacement Questions
How long does an installation take?
A straightforward replacement in the same location is often done in a day. Ductwork changes, electrical upgrades or moving the unit can add time, and we'll tell you what to expect before we start.
Should the indoor and outdoor units be replaced together?
In most cases, yes. The indoor coil and outdoor unit are designed and rated as a matched set. Pairing a new outdoor unit with an old indoor coil can cut efficiency and cause problems with a newer refrigerant.
Is a heat pump the right choice for a coastal home?
For most homes here, yes. Our mild winters let a heat pump heat efficiently most of the year, and it cools just like an air conditioner. To see everything we do, visit Coastline Heating and Cooling in North Myrtle Beach, or if your current system just needs a fix, see heat pump repair.
Heat pump, AC and heating repair for North Myrtle Beach, Little River, Calabash and the north end of the Grand Strand. Licensed in South Carolina and North Carolina.
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