Ducted heat pump sizing help

24 / 7 Emergency Service Available. Call Us Now: 1.844.894.6832


[BACK]
Ducted heat pump sizing help

Posted On: September 11, 2023

Ducted heat pump sizing help

Hello all! I'm researching updating my houses current ducted heat pump system to a newer hyper/max heat system (16-18+ seer).


Typical 1997 built 2 story 1600sqft living space house with basement located near Columbus Ohio.


Current system is the OG 2.


5ton Lennox heat pump with a 15kw backup heat strip.


House only has electric for heat.


I've been talking with a local hvac guy and hvacdirect (local pickup in Dayton Ohio) about sizing.


I'm getting very different recommendations.


Local guy is saying to do a 3ton 36k system with a huge heat strip (like 20-30kw) while hvacdirect said to do a 5ton system with no heat strip based on heating btu's needed at cold temps (seems way oversized to me).


*EDIT: oops I think I misunderstood him, I think he meant a 20-30 btu heat strip, which would be like 8-10kw, make more sense.


*.


Based on my research I was thinking a 3ton 36k system.


Gree/Stealth system I'm looking at is rated to 28k btus at 5F so I would think that would be plenty for my house given current 15k heat strip can keep up.


I was debating adding a 10k heat strip to help during defrost.


This seem reasonable or should I be doing something else?


Question from user lowfategg at heatpumps at reddit.


Answer:


When your current system has been working well, did it cool and heat OK? If yes, you do not need more capacity.


If it cycled during the hottest days, it has excess AC capacity.


Many equipment options are in whole tons only.


Even if you needed 5 tons for heating, your ducts would not manage that.


And noisy too.


Note that adding blown in attic insulation is fast and affordable.


Conflicts between heating and cooling capacity can occur.


If you have to lean on e heat, that is what it is.


With air handlers, e heat augments to what the HP is still producing unless it gets so.


cold, the HP will not run.


Ducting? Doubling CFM produces 4 times the pressure and 8 time more blower power.


Answer from user Dean-KS at heatpumps at reddit.



[BACK]

See What Our Customers Are Saying:

by Private User on Twintech Heating and Cooling

Flawless transaction. They did exactly what they promised, showed-up on time, cleaned-up, and were highly professional. Highly recommended.

by Bill Edmondson on Twintech Heating and Cooling

Salesperson and 2 man installation team were all professional and
knew their stuff. All three were friendly and helpful, answering all
my questions. The quality of their work demonstrated their experience
and expertise in their field.

by Private User on Twintech Heating and Cooling

A dear late cousin of mine recommended this company and I have been happy with the service.

by Private User on Twintech Heating and Cooling

We are very pleased with the work done by Twintech. They were very professional from start to finish. Dave came to our home and gave us a very competitive quote for new high efficiency furnace and air conditioner. The installers were very courteous and professional. We would highly recommend them.

by W1n5t0n1987! on Twintech Heating and Cooling

Great experience getting an old furnace replaced.
Sales Guy (Dave) was great - honest, responsive, and friendly.
The work itself was done quickly and we are very happy with the outcome, thank you! We recommend TwinTech!

by Private User on Twintech Heating and Cooling

This review is late coming so my apologies to the amazing Twin Tech team! I contacted Dave at Twin Tech for a quote this past Feb (as I was collecting a few) and his recommendation was excellent. From the first meeting with Dave to the team installing the new furnace, not once did i feel uncomfortable . The team were extremely professional yet personable and clean and tidy. Decent companies still exist!
The new furnace just purrs and its just amazing the difference it has made!
(PS my sibling ended up getting a furnace from them as well)

by Private User on Twintech Heating and Cooling

The service was Twintech was excellent.
Dave our salesperson was easy to talk to and was professional. The unit recommended meets our needs and budget.
Greg and his team arrived on time for the installation and even got rid of the garbage the contractors left in our furnace.
Would definitely recommend Twintech.

by Steve V, Toronto on Twintech Heating and Cooling

Our old water tank was installed in 1997. Wasn't working as well as it should so we looked into a tankless as it is more efficient and a space saver! we had used Twintech in the past for a furnace cleaning and were satisfied with that so we decided to ask for a quote for the changeover. Gary arrived and provided the options and the quote fit within our budget so we decide to go with them after receiving a few alternative quotes from other companies. They did what the said would be done and it was completed within a reasonable time frame! Removal and cleanup of the old tank was seamless. We are now enjoying consistent and efficient Hot water! I recommend Twintech and would use them for future projects!

by New AC Unit + Humidifier on Twintech Heating and Cooling

One of the most honest HVAC companies out there! Dave was very helpful and informative in helping us choose a new AC unit. While they weren’t the lowest quote, we went with them because we trusted Dave and he was the most honest guy out of the companies that quoted us.
Greg and his crew who installed the unit were very professional and did a great job. If I could do it over again I would choose Twintech again.

by Private User on Twintech Heating and Cooling

Relocated and replaced our air conditioning unit. Fast, professional, and high quality service. We would definitely use them again for future projects!

Related Links:
heat pump system cost, 5 ton heat pump, indoor heat pumps, heat pump technology, residential heat pump system, heat pump hvac system, heat pump,