Hernando’s newer houses, first heat pumps
The typical Hernando home was built in 2002, the newest median in DeSoto County, according to the Census Bureau. That puts a lot of original heat pumps and ACs at around 20 years old.
Bluffline Memphis Heat Pumps replaces and installs heat pumps across Hernando, from the Courthouse Square out along Commerce Street and Nesbit Road.
What comes up at 20 years
- Outdoor units losing capacity, so the backup strips run more each winter.
- R-22 systems that can’t be recharged at a reasonable price.
- Original ACs in gas houses whose furnaces were replaced earlier.
When the strips run the bill
About a third of Hernando homes heat with electricity. In an all-electric house the heat pump should carry most of the winter and the strips should come on only on the coldest mornings and during defrost.
When winter bills run higher than summer ones, the strips are usually running far more than they should.
The two usual causes
- No outdoor sensor or lockout. The thermostat calls for strips whenever the house falls a degree or two behind, even at 50 degrees outside.
- A tired outdoor unit. As the compressor ages it delivers less heat, so the strips make up the difference.
The aux and emergency heat guide explains how staging should work, and the thermostat guide covers the settings.
Outdoor unit only, or both halves
A house from 2002 may have had its air handler replaced once already. If the indoor half is recent, matches the new outdoor unit and uses the right refrigerant, it can stay.
When to replace both
- The air handler is original, rusting or leaking.
- The system runs on R-22.
- The maker doesn’t list a matched pair for the old indoor unit.
Replacing only the outdoor unit when the indoor half isn’t a listed match leaves a system that never reaches its rating. Heat pump replacement covers the choice in detail.
Gas houses in Hernando
About 63 percent of Hernando homes heat with gas. Where the furnace is sound and the AC is failing, dual fuel keeps the furnace for the coldest nights and puts a heat pump in the AC’s place.
The furnace check
Before we price dual fuel, we inspect the furnace’s heat exchanger, flue and blower and take a combustion reading. A furnace that fails the check changes the estimate to a new furnace or an all-electric system.
Sizing an early-2000s house
Houses from this era are bigger than older ranches and often two stories. A load calculation for the 95-degree summer and 20-degree winter design conditions sets the size, room by room, rather than the old nameplate.
Two stories, one system
Where one system serves both floors, upstairs tends to run warm and damp. A second return and sealed attic ducts help, and a variable speed heat pump running long and slow pulls more water out of the air.
Permits: city or county
Hernando is the DeSoto County seat, and the city and county run separate building offices.
- Inside city limits: the City of Hernando Building Department, part of the Office of Planning, issues permits and inspects.
- Outside city limits: DeSoto County’s planning and building office handles it, even with a Hernando mailing address.
We check which applies to your address and pull that permit. The inspection follows the install, and the permit has to be issued before install day, so it sets the calendar more than anything else.
What it costs in Hernando
Bluffline’s typical range for an outdoor unit only is $4,500 to $9,000. Every range:
| If the job is | Typical range |
|---|---|
| Outdoor unit only | $4,500 to $9,000 |
| Whole-home system with a new air handler | $8,000 to $16,000 |
| Heat pump on a gas furnace you keep | $5,000 to $10,000 |
| Air handler only | $2,000 to $4,500 |
What you pay is set by the written estimate we leave after looking at the house. Capacity, the efficiency tier, whether the line set can stay and any duct repairs drive the number; the cost guide goes through them.
Rebates
Hernando is on Entergy Mississippi, not a TVA power company, so TVA’s heat pump rebate doesn’t apply. Entergy Mississippi runs its own heating and cooling incentive program; we check its current terms for the equipment we quote.
Older homes near the Square
Not all of Hernando is new. The streets around the Courthouse Square and along Commerce Street include houses from the mid-twentieth century, some with crawlspaces, small returns and ducts that were extended as rooms were added.
What that changes
- Crawlspace ducts in humid air need sealed seams and sound insulation, or they sweat in summer.
- Small returns sized for a smaller old system can starve a new heat pump of air.
- Older electrical panels may need a look before strips or a new circuit go in.
On these houses we take a static pressure reading and look under the floor before quoting. Heat pump ductwork and the panel guide cover the fixes.
How long a heat pump lasts here
A Mid-South heat pump runs most of the year, cooling from May into October and heating through winter. Fifteen to twenty years is a fair working life with regular filter changes and a clean outdoor coil. The lifespan guide covers what shortens it.
Helping the first visit along
It saves time if you can gather:
- Photos of the nameplates on the outdoor unit and the air handler or furnace.
- Twelve months of Entergy bills, which show the winter strip-heat pattern.
- The thermostat’s model, or a photo of it.
- Rooms that run warm, cold or damp.
Nearby
We work across Hernando, from the Courthouse Square and Conger Park to the newer neighborhoods off McIngvale and Getwell Roads.
Southaven and Horn Lake to the north have older housing, and Olive Branch to the northeast sits partly on a TVA power company. The Memphis heat pump buying guide lays out every step of the choice, Hernando included.
