I live in south Georgia, where it is very hot and humid. We only get a handful of really cold days a year (really cold is in the teens and 20s lol). I've been reading up on ac units because ours is going out and is currently a single stage. I've read that 2 stage and those inverter or variable type units are more efficient and are better at reducing humidity, and I kind of hate how ours is either off or on full blast. The first company I called installs Daikin, but they pretty much only install the single stage models and actually are trying to talk me out of the other models which I thought was odd but 🤷‍♀️.

The other reputable company in town uses Carrier, and I'm currently waiting on a call back to talk to them about a quote as well.

My house is ~1800 sqft. Any advice is appreciated.

Installed 3 years ago.

House is very old and mold is an issue I've had to deal with before, and probably have to again and again

I thought replacing my oil boiler would be a simple get three quotes, pick the reasonable one, move on situation, but apparently not. One contractor said cold weather heat pumps are basically magic now, another acted like I was asking to heat the house with candles, and the third guy seemed pretty normal but recommended a midea I hadn’t really considered. my first thought was, “is this just the cheaper option he makes better margins on?” but then he walked me through the sizing, the low-temp capacity, and why an inverter heat pump matters more than the logo on the cabinet. now i’m stuck in that annoying middle ground where the lower quote might actually make sense, but I also don’t want to save money and end up needing space heaters in february. For people in a genuinely cold climate, what do you trust more the brand name, the installer’s math, or actual homeowner feedback? every contractor review I can find from 2026 sounds either oddly sponsored or really angry, and I just want one boring, honest answer.

Necesito un consejo, o saber si esto le ha pasado a alguien más.

​Instalé una unidad nueva de bomba de calor GE. Después de instalarla, el lado de baja estaba marcando 90 PSI. Agregué refrigerante R454B, y no pasaba de 125 PSI en el lado de baja y 300 PSI en el lado de alta. La temperatura del lado de baja es de 68°F y la del lado de alta es de 75°F. La configuración del termostato está correcta. Cuando enciendo el modo de Enfriamiento, no enfría, y cuando enciendo el modo de Calor, sigue funcionando en modo Enfriamiento. Configuré el termostato en 'O' y en 'B', y sigue haciendo lo mismo. Por favor, ayúdenme.

Hi guys

I know usually the Flexx 36’s are paired with 2 or 3 ton coils, but I also know with the dip switches on the outdoor unit you can enable energy saving mode which makes the unit act 0.5 ton smaller so you can get 2.5T. In that situation is a 2.5T evap coil okay to use or does the unit still need a 3 ton evap? I have a 2.5T evap already installed which is why I’m asking

Looking at new house, it has this heatpump for heat/ac, and wondering how it will do to keep the house at 70 deg when we have 0 deg F nights in Jan. This pump covers 2.5k sq ft. I have never heard of this brand, no idea how well it will do, how long it will last, maintenance, etc. Any comments from experienced people is greatly appreciated.

We have a new heat pump Daikin Altherma ETBH12EF9W and I am quite disappointed by it's efficiency. Now, it is just October, so the temperatures are still very mild and we do not need too much heating power. In this regime, I found out that it actually seems that the machine gets more efficient when the temperature of the heating water is set to a higher value (like 35 C) than having it on the minimum of 27. Once I ran it for about 11 hours on 28 C and it estimated the energy consumption of 4 kWh and heat production 9 kWh. Another day I tried to run it for 5 hour on 35 C and it estimated the consumption of 2kWh and heat production 9 kWh. We have 22 C inside, so the product of temperature difference and time in both cases is about the same, so the heat production should indeed be the same, so the machine's estimate is not wrong (or it is equally wrong for both cases). This was during the day. Last night, I let it run for 27 C and now it absurdly reports higher energy consuption that heat production, which I find really unacceptable. I thought that maybe the estimate of energy consumption might be off, but checking against the power meter of our house suggests it really consumes the energy on this scale.
I guess the solution is to run on a higher temperature for a shorter time then. But it is disappointing anyway. I was looking forward to having a stable temperature for the whole day. We even do not have the thermostat because I was told it is not necessery and it would indeed not be necessary if the heat pump could run continuously. But this way it is just wasting energy. Do you have a similar experience?

Installed Samsung mini split heat pumps a few months ago in northern Maine. Starting to get in the cold months and just started using them to heat. I have an emporia energy monitor hooked up and it appears the compressor is short cycling. 35k outdoor compressor with 24k head in living room(also includes dining, kitchen area as is an open floor plan) and 9k in a bedroom on the same level.. Currently we only have the living room head on. It seems the compressor turns on runs for 6 minutes, shuts off for 6 mins and then turns back on repeating throughout the whole day. I've attached pictures of the energy graph. From my phone research, shouldn't the compressor only power on and off 2-3 times per hour. Mine is currently turning on and off 6 times per hour. Am I correct to assume this is short cycling which is bad for the compressor and uses more energy?

I purchased a cielo breez max to try to stop the short cycling but that I think only works if I use it with the comfy/comfy max mode. With comfy mode, I can set it so it runs until it hits 2 degrees above set point and then turns the unit off until it's one degree below setpoint. Comfy max would use an algorithm to adjust the settings to keep it at the desired temperature but I think that could cause problems considering it's a multi head unit. I'm not sure if the thermostat shutting the mini split off a few times a day is better or worse than it short cycling. Ideally I'd let to just set it and forget it at a certain temperature and not have it short cycling but if I just set it on the cielo thermostat it continues to use the Samsung internal thermostat.

Any help is appreciated! Trying to find the most energy efficient way to use this before the real cold weather gets here.

Central PA, two story colonial, 2200 sq ft. Gas furnace is 16 and probably doesnt have much runway left. I get the efficiency argument for heat pumps in moderate climates but PA winters regularly hit teens and sometimes single digits. Am I just gonna be running aux strips half the winter paying more than gas?

Want to hear from people in similar climates who have actually lived through at least one full winter. Not the theory, the reality.