# Heat pump guides > Plain answers on heat pumps for Memphis houses: gas or electric on MLGW rates, dual fuel, sizing, ducts, humidity, TVA rebates and what installation costs. URL: https://blufflinememphisheatpumps.com/guide/ Guides Answers to the questions that come before an estimate, written for Memphis houses on MLGW gas and electric. ## Planning a heat pump - [Decision Guide**How do you buy the right heat pump for a Memphis house?** The whole decision in the order you meet it, from the system you have now to the readings you should get at start-up.](https://blufflinememphisheatpumps.com/guide/memphis-heat-pump-buying-guide/) ## Heat pump replacement - [Learn**Why does a heat pump go through a defrost cycle and ice up in winter?** Frost, steam, a whoosh and a pause are normal. A block of ice that stays isn't. Here is how to tell them apart.](https://blufflinememphisheatpumps.com/guide/heat-pump-defrost-ice/) - [Learn**What belongs on a heat pump installation checklist?** The tests during installation and the readings at start-up that separate a heat pump that reaches its rating from one that never will.](https://blufflinememphisheatpumps.com/guide/heat-pump-commissioning-checklist/) - [Learn**Where should a heat pump's outdoor unit go, and how loud will it be?** Clearances, pads, drainage and sound on narrow Memphis side yards, and when it is worth moving the unit at replacement time.](https://blufflinememphisheatpumps.com/guide/outdoor-unit-placement-noise/) - [Decision Guide**Should you replace your central AC with a heat pump?** The same cooling, a little more cost, and a second way to heat. When the switch pays and when a plain AC is still the right buy.](https://blufflinememphisheatpumps.com/guide/heat-pump-vs-central-ac/) - [Learn**How long does a heat pump last in Memphis?** Year-round running, humid summers and installation quality decide the number. Here is what to expect and what helps.](https://blufflinememphisheatpumps.com/guide/heat-pump-lifespan-memphis/) - [Learn**How should a heat pump be sized for a Memphis house?** What a load calculation measures, the design temperatures it uses here, and why the right answer is often smaller than the old unit.](https://blufflinememphisheatpumps.com/guide/heat-pump-sizing-manual-j/) - [Decision Guide**Should you repair or replace your heat pump?** Age, refrigerant, the size of the repair and what the system already isn't doing well. A practical way to weigh them.](https://blufflinememphisheatpumps.com/guide/repair-or-replace-heat-pump/) - [Cost Guide**How does the TVA EnergyRight heat pump rebate work in Memphis?** Who qualifies, which equipment tier pays what, the contractor rule, and what to expect on the Mississippi and Arkansas side.](https://blufflinememphisheatpumps.com/guide/tva-energyright-heat-pump-rebate/) ## Electric furnace to heat pump - [Learn**Do you need an electrical panel upgrade for a heat pump?** Most heat pump jobs reuse the existing circuits. Here is when they don't, what a load calculation checks, and how smaller strips avoid an upgrade.](https://blufflinememphisheatpumps.com/guide/electrical-panel-for-heat-pump/) - [Learn**What is the difference between auxiliary heat and emergency heat?** Two settings that both turn on the strips, why one is automatic and the other is a last resort, and how to keep the bill in check.](https://blufflinememphisheatpumps.com/guide/auxiliary-emergency-heat/) - [Learn**How should a heat pump thermostat be set up in Memphis?** The handful of settings that decide whether a heat pump saves money: the equipment type, the outdoor sensor, the lockout, setbacks and the fan.](https://blufflinememphisheatpumps.com/guide/heat-pump-thermostat-setup/) ## Gas furnace to heat pump - [Decision Guide**Is a heat pump or a gas furnace cheaper to run in Memphis?** The per-BTU math on MLGW's rates, the months it flips, and what it means for keeping, adding to or retiring a furnace.](https://blufflinememphisheatpumps.com/guide/heat-pump-vs-gas-furnace-memphis/) - [Learn**What happens to a heat pump in an ice storm or a power outage?** Ice on the unit, power out for a day, and what to do before, during and after. Plus how gas, strips and generators compare.](https://blufflinememphisheatpumps.com/guide/heat-pump-ice-storm-power-outage/) ## Dual fuel heat pumps - [Learn**What switchover temperature should a dual fuel heat pump use in Memphis?** The two numbers behind the setting, what MLGW's rates say about them, and how to pick a point you can live with.](https://blufflinememphisheatpumps.com/guide/dual-fuel-switchover-temperature/) ## Duct work - [Decision Guide**Should a Memphis house get a ducted heat pump or a mini split?** If the house has ducts, a ducted system usually wins. If a room has none, a ductless unit can serve it. Here is how to tell which you need.](https://blufflinememphisheatpumps.com/guide/ducted-heat-pump-vs-mini-split/) - [Learn**How do crawl space ducts affect a heat pump in Memphis?** Humid air under the floor, cold ducts, failed tape and small returns, and what to fix before a new heat pump goes on them.](https://blufflinememphisheatpumps.com/guide/crawl-space-ductwork-heat-pump/) ## Variable speed heat pumps - [Learn**Does a heat pump remove humidity from a Memphis house?** Why 72 degrees can still feel clammy, where the water goes, and the four things that decide how dry a heat pump keeps the house.](https://blufflinememphisheatpumps.com/guide/heat-pump-humidity-control/) - [Learn**What do SEER2 and HSPF2 mean on a heat pump?** The two numbers on every heat pump quote, what changed when they got a 2, and how much a higher rating is worth in a Memphis house.](https://blufflinememphisheatpumps.com/guide/seer2-hspf2-explained/) ## Ask about your house (901) 657-2200