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Questions tagged [heat-pump]

The heat-pump is a type of central heating system that extracts heat from the outside, reversing the process used by a central air system.

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Low Pressure Light Heat Pump

I have a GeoCool water-sourced heat pump with a low pressure issue. Every day, around the same time, the unit throws a low pressure light and we lose cooling. Not ideal since we are experience record ...
ian's user avatar
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Read an article about connecting a hot tub to a heat pump, looking for details

There does not seem to be a lot out there yet. So the question is whether or not anyone has some ideas. I have a new heat pump, which happens to be right near where I am going to put a new hot tub. I ...
Rob's user avatar
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Heat Pump head making noise

I moved into a house this Spring that has a Samsung Heat Pump. It has 1 outdoor unit and 3 indoor heads. The units have been functioning fine, but recently one of them started making an unusual noise. ...
Eabryt's user avatar
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Federal Tax Credits for Energy Efficiency [closed]

Hello does anybody know if I can get both water heater and HVAC tax credit, $2,000 each, if I upgrade both to a heatpump version this year? https://www.energystar.gov/about/federal-tax-credits#savings ...
Bruno Nasirakhunov's user avatar
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1 answer
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Is it a problem that the indoor unit of a mini-split AC/heat pump is not properly leveled?

I noticed that the indoor component of my new mini-split installed by the handymen today is not properly leveled. It's off by about 0.3 inch (0.75 cm). I believe that would amount to a 0.5 degree ...
appwizcpl's user avatar
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Mini-split options and its suitability? [closed]

I recently bought a new home with no central AC, except for one in-the-wall unit in a bedroom. The house spans 2,000 sqft across three floors and is heated with hot water baseboards from an oil ...
Jason's user avatar
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Heat Trap Loop for Water Heater Outlet

I just installed a Rheem 50 Gallon Hybrid (Heat Pump) 240v water heater (XE50T10H45U0). I put an 8" heat trap on the cold inlet, but not the hot water outlet. I am noticing the hot water outlet ...
Jeff's user avatar
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Spending $$$ on energy efficiency heatpump attached to old ductwork? Smart? [closed]

My 20 year old heat pump gave up the ghost. With summer here, I need something soon. I've had companies give me bids over the weekend, both with great reviews on yelp and Google. Guy #1 was selling me ...
UncleChef's user avatar
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How to perform maintenance/troubleshoot of heat pump functionality of water heater?

This is a follow up question to my previous question: Is this the right way to change heating element for hybrid electric water heater? It is a hybrid electric water heater(model: GEH50DFEJSR). I ...
javanoob's user avatar
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How to set temperature and mixing valve for heat pump water heater?

I have a Rheem heat pump water heater and a mixing valve. I have heard many (contradicting) advice for how to set water temperature. The mixing valve has simple settings but no thermometer and I haven'...
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Home preparation for air conditioner installation

How can prepare myself for air conditioner installation when focusing on energy efficiency? Is there anything I need to know? Please help me for optimizing energy efficiency.
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Possibility of using a heat pump to exchange cool air from a ground floor with third floor room [duplicate]

Is it possible to create a heat pump system to exchange cool air from a ground floor bedroom with the heat from a third floor bedroom? I only know of heat pumps being used to exchange cool air & ...
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Ventilation needs for heat pump water heater in outdoor utility closet

I am working with an HVAC contractor to replace my current gas-power water heater tank with a heat pump water heater. It will be located in an unconditioned utility closet with a door connected to the ...
Duncan Rager's user avatar
5 votes
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Is HVAC heat pump condenser better mounted to a wall or a flat roof?

My home has a split flat roof. One section is 3' taller than the other. I'm considering replacing my gas furnace with heat pump. Would it be better to install the condenser unit on top of the flat ...
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Heat pump vs gas furnace return air vent noise

I'm in Seattle and considering to replace my old single stage gas furnace (88k BTU output) with either these two options. Heat pump + gas furnace hybrid AC + gas furnace The primary concern is about ...
Icyfish's user avatar
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HVAC heat pump struggling with (new to me) laser vacuum sounds

Ok. I'm a decent DIYer, and have done a few repairs with my HVAC heat pump system. Less than 2 years old professionally installed unit. This sound is new to me. https://youtu.be/rJI_W5lvd3Q?si=...
granadaCoder's user avatar
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Won't the secondary condensate p trap evaporate?

So my understanding is that both the primary and secondary condensate drain lines should have p traps installed to prevent air ingress (or egress depending of it's a positive or negative air system). ...
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How do I wire a Goodman AUX Heat Kit?

I was installing a new thermostat and had to connect a C wire on a Goodman ARUF for up stairs. While in the attic I noticed the white wires were not connected and I do have a AUX Heat Kit installed. ...
Shawn Folsom's user avatar
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AC blowing hot air. Smart thermostat wiring wrong or something else?

I installed a Honeywell Wi-Fi smart color 7 day programmable thermostat (model #RTH9585WF) on 11/27/23. The wiring directions on it didn't exactly match my old thermostat so I posted on a forum and ...
Derek Gilbert's user avatar
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My HVAC filter seems to lack sealing. Do I need to do anything about it?

I recently got a new heat pump installed. I realized that the filter is just slid in without any door or sealing, see here: I find this a bit odd because everything else (the ductwork incl the return ...
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Heat Pump GE Blower Motor Rotating In The Opposite Direction

I bought a used GE 5KCP39GG R359S 1/3hp Motor, 200/230V, 1080rpm, Trane PN: D800349P01 Blower Motor that is exactly the same model as the one I’m replacing. The problem is that the newer (used) motor ...
Allen's user avatar
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2 answers
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Do you see flaws in my multi heat sources & multi recirculating pump setup?

Short version: I'm currently designing my water heating setup for a house I'm in the middle of building. Can you lend me your eyes to see if there's any fatal flaws you can see in the diagram I made? ...
Captain Banana's user avatar
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Why does the fan cycle on and off during heating cycle only?

My neighbor has an older model Carrier heat pump with electric strip heat. Here lately after she had maintenance done the fan indoor fan that is Will occasionally cycle on and off. I went over and ...
Rich Schneider's user avatar
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165 views

Are my condensate drain pain and p trap installed correctly?

Long story short, previous owner of my condo said the condensate overflowed into the ceiling. The building inspector suggested having an exterior drain pan installed. After move-in, I hired an HVAC ...
James's user avatar
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Cost impact of installing a heat pump vs. improving insulation

I have a gas heater for my 3,100 sqf house in the PNW, where winter temperatures tend to be around 30s-40s from December to February. I looked at my recent gas bills and am noticing pretty high ...
peter's user avatar
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Geo Heat Pump Leak

First: water source heat pump on a well. I’ve got a leak at the (I think) inlet before the compressor. It’s just before the ball valve. See pic with blue towel. I can make the fix but I’m worried ...
ian's user avatar
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What does "Auxilliary heat is running too long" mean in my ecobee

Not sure why this happened to our home while we were away, but all of a sudden this showed up and lasted a long time. Right now, it's all good. What should I check to make sure it won't be an issue ...
Lara Bernadine's user avatar
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1 answer
49 views

Finding Bryant Heatpump model

I am trying to find details about a heat pump model that a contractor provided me a quote for. The specific model is Bryant Inverter heat pump 38MURAQAQ36B3 [High Heat] I tried to google, bryant ...
Ayusman's user avatar
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GoodMan heat pump only heating a few minutes at 88 deg before I the air goes back to room temp and the elements turn on

I have a Goodman heat pump with a A30-10 air handler. When the thermostat turns on the heat, it starts to warm the duct air to about 87-88 deg and then I hear a humming sound start and get louder, ...
vince's user avatar
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2 answers
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System has orange, blue and white wires but thermostat does not have a place for each

I am trying to update my thermostat so we can set BOTH heat and cool temps. Right now, we get to play the 'go change to heat/cool' game based on what the weather is doing.. OLD thermostat has (...
revive's user avatar
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Energy efficient home improvement tax credit

I have been doing some reading for the tax credits available for furnace and heat pump installations. https://www.irs.gov/credits-deductions/home-energy-tax-credits and https://www.energystar.gov/...
Ayusman's user avatar
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2 answers
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Can heat pump completely replace natural gas furnace

My current home heating is through a natural gas forced air furnace. I have tried to get quotes from multiple contractors.. all of them basically keep saying that I need a backup natural gas furnace ...
Ayusman's user avatar
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I have an Rinnai boiler/water heater, one zone. It worked well for 2 years and then began errors

Got E: 140 heat exchanger overheating. The propane company came out and replaced the internal circulator 2 weeks ago. Last night same error. they replaced it again but it still didn't work and they ...
Lisa's user avatar
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1 vote
1 answer
50 views

Oil Hydro Air & Heat Pump Efficiency

We recently moved into a 5 bedroom home in central Massachusetts with the following system that was installed in 2006: 3 zone hydro-air heat with Veissman Vitorond 100 boiler and Riello 40-F5 burner. ...
Kevinleary.net's user avatar
0 votes
1 answer
134 views

Can a heat pump designed for mini-split system be used for central AC ductwork?

I am looking at replacing my old central AC unit with a heat pump one using existing ductwork. A contractor quoted me Fujitsu Airstage indoor unit AMUG48LMAS with outdoor unit AOUG48LMAS1. I checked ...
ahala's user avatar
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1 vote
1 answer
537 views

How do I handle two wires on W2 terminal block of old thermostat when moving to new thermostat?

I have an old thermostat that I'm ready to replace. The old thermostat has A/C, Heat pump with 1 stage auxiliary (electric forced air) heat. I am replacing the old one with a Honeywell RTH6360D. I'm ...
raddevus's user avatar
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1 vote
1 answer
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Heat pump, when it's not very cold, don't want to use auxiliary heat, is this controlled by thermostat?

We have a heat pump with electric furnace as the auxiliary heat source. It's not extremely cold yet and the heat pump can get us to the correct temperature (without implementing auxiliary heat source) ...
raddevus's user avatar
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1 answer
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Place heat pump unit on concrete walkway or dirt/gravel?

The picture shows the location for a new heat pump. And as part of an upcoming hardscaping project, we will pour concrete in all this area to build a walkway: We would like the HP to be installed ...
goldfrapp04's user avatar
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0 answers
45 views

Heat Pump - Air Handler circulates when using emergency heat

I have a Bosch Heat Pump that was installed this past summer with a Resideo thermostat. When I try to run my fossil fuel heat source (baseboard forced hot water), it turns the fan on to circulate air....
Samuel Jackson's user avatar
1 vote
1 answer
67 views

Heat Pump Air Exchanger efficiency gains in Snow/Cold

I have a 5 ton Bosch air to air heat pump, just installed last fall. I built a small timber framed cover to protect it from snow. One thing I was hoping to also do was to cover the sides of the small ...
Markpelly's user avatar
1 vote
1 answer
132 views

Can I use an air source heat pump water heater for dehumidification of indoor line drying?

After living in the German-speaking world and becoming accustom to having a Trockenraum, which can be thought as a dedicated room of a building for line-drying laundry indoors backed by a blowing ...
mtp's user avatar
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2 answers
1k views

Is it ok to have condensate drain pipe onto concrete next to foundation?

Here is another madness my heat pump & heat pump water heater installer did: The condensate drain (operated by a pump) runs directly on the concrete, next to the exterior wall (and hence ...
divB's user avatar
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0 votes
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AOSmith Voltex Heat Pump Water Pump Stuck on Vacation Mode

AOSmith Voltex model# PHPT 60 100, about 10 years old. Was working perfectly fine in "Efficiency mode" (ie, heat pump only). Turned it on to vacation mode today as I'm about to leave on a ...
James's user avatar
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1 vote
1 answer
79 views

Minisplit Head units produce heat far beyond set temp

My setup: I have three C&H brand 9k head units upstairs in 3 different rooms. One 18k slim duct unit downstairs. And a 48k compressor outside. The scenario: It's 50° outside. The three 9k units ...
Landoperk's user avatar
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0 answers
33 views

two stage heat pump and condensing boiler run off one 3rd gen thermostat

I have a 2 stage 20 seer bosch heat pump utilizing aux heat strip. I also have a navien condensing combi unit for domestic and hot water baseboard heating. no hydronic coil to air handler. Boiler only ...
Brian's user avatar
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1 vote
3 answers
100 views

HVAC Heat Pump Outage

Upstairs zone heat pump with air handler in attic. Installed April 2022. Thermostat is an Ecobee3 Lite. Noticed this afternoon that Alexa wasn't getting a signal from the Ecobee. I went over to it ...
Huesmann's user avatar
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2 stage heat pump and condensing boiler run off one 3rd gen thermostat

I have a 2 stage 20 seer bosch heat pump utilizing aux heat strip for second stage. I also have a navien condensing combi unit for domestic and hot water baseboard heating. Currently both systems are ...
Brian's user avatar
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0 votes
0 answers
54 views

Help understanding half-built ductwork

I'm trying to understand a new ductwork system that was half-built and then abandoned. It was built with a cold-weather heatpump and possibly an ERV in mind. It has four supply lines fully ducted ...
ElectronHammer's user avatar
0 votes
2 answers
240 views

Sizing charts for air conditioner or heat pump for humidity rather than cooling? 1-stage vs. 2-stage? 3-stage? [closed]

Inevitably I'll have to replace my heat pump, and when that time comes I'd like to have the calculations on the size of the replacement to account for dehumidifying in addition to heating and cooling. ...
MacGuffin's user avatar
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-1 votes
1 answer
101 views

Restoring automatic selection of natural gas heat vs. heat pump based on outdoor temperature [closed]

I had a Goodman SSZ14 series heat pump installed in 2008, with the installation came a then top-o-the-line Honeywell thermostat which provided the feature to select heating source (heat pump or ...
MacGuffin's user avatar
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