You could go with a 4 ton but if the 3. There can be even people residing here at the same time. It can be either one big unit or two smaller ones at the opposite ends of the hallway.
What would you suggest? Many thanks. Hello Eszter, 3, sq ft with You should be looking at two 4 ton multi-zone mini-split units. For 10 rooms, you will need at least 5 air handlers to evenly distribute the cool air. I live in florida and have a two story townhouse. The unit is a dual zone for upstairs and downstairs.
We are roughly square feet. What size unit would I need? Given this is hot Florida, 3 tons should be considered. Dual zone with each zone generating 1.
I live in Savannah, Ga. My house is 3 bedroom 2 ba, 2 car garage with bonus room over garage and sqft. I have 3 rooms with 14 ft ceilings. The hvac is 3. Our master bedroom is on the opposite side of the house from the hvac unit. This room has always been very hot in the summer and very cold in the winter. Upgrading from 3. To answer your question, the 4 ton unit is not too big. First, let me say how gracious you are with information.
My home is sq. Currently there are two units installed in this house, both Carrier, totaling 4. One of them is in the attic; the other in a hallway closet. There is no ceiling in that closet and it is open to the attic. I deplore that! After 27 years of service, the Control Panel on one of the units has gone out.
Considering the age of the units and my distaste for the no-ceiling situation, I believe the best decision is to replace both units with One Unit. The salesman informs I need a 5 ton unit.
Naturally, I will get a couple more bids from other companies. Hello Carmen, thank you for your question. The hands-on HVAC experts will know best. Just follow a few directions, such as you know that 4. In most cases, a higher SEER unit is a better investment. If you need more quotes, you can get up to 4 quotes for free her e. Hope this helps a bit. I recently had a rialto home built. My master bedroom, media room. Setting the temp to 70 at night, the upstairs bedroom is 60 degrees and downstairs bedroom is 74 and airflow seems to be an issue.
Our system is 2 zones, upstairs and downstairs and is a carrier, high efficiency 16 seer. Am I wrong? I carrier, the builder nor the hvac company will answer my question on the size of the unit being appropriate.
Hello Adriana, this seems like an inadequate airflow issue indeed. You can rearrange the current setting by putting the bigger of the 2-zone units upstairs the one with higher airflow. That would distribute the cooling more evenly. ACs go out a lot out here. Hello L. It would be best if you would look for a new AC with up to 1 ton additional cooling capacity. The lower level is cooled by a ductless mini split.
The top level, which is where I need the central ac, is approximately sq ft with 8 ft ceilings. Two people will be living in the house. There is a sliding glass door that opens onto the back deck. House faces east.
There is currently a 3. What size ac would be best, 2. Or am I off base here? For the upper part, the 3. My national home builder put a 2 ton unit in my 1, sq ft home and during the summer, we have difficulty cooling 2 rooms of the house. I just had an 11 month inspection and the inspector said the unit is 2 tons and should be at least 2. The warranty group tells me he is using old standards and they have engineering reports that claim 2 tons is sufficient.
In light of the fact that i have 2 rooms degrees warmer than the rest of the house, I think the home builder is trying not to upgrade the system appropriately. Can you comment of what size the system should be? So, even this simple rule tells you you would need a 2. Hope you resolve the issues as smoothly as possible. Builder is consistent stating that one 5 ton unit is enough to cool the home without burning itself out and more tonnage will cause mold. Even though during the planning process they discussed needing 2 units and even built the 2nd AC pad.
Can you help? Now, South Texas is hot, so you should be having higher-than-national-average cooling needs. That may be a good reason to look for 2 units with a net capacity larger than 5 tons. Nonetheless, the installers had an on-sight look and has more detailed information. As of the old statistics, AC tonnage calculation is not an exact science and you can get different results using roughly the same standards.
Hope this helps in understanding the two different suggestions. We just had a house built but feel they put the wrong condenser in.
We have a dual zoned home between the upstairs and the down stairs. Hello Mike, the 3. The climate, insulation, windows, sunshine, and so on have an impact on cooling requirements as well, beyond the rule of thumb. Chances are that the 3. Theoretical calculations are one thing. Once the assessment is complete, the consultant will give you an estimate to consider for several unit types.
They will also help you understand how each unit can cool your home and will then help you make a decision based on your cooling needs and budget.
What you can do as the homeowner is make a list of issues you currently have with your air conditioning unit and discuss what you find with the consultant. Here are a few questions to ask yourself:.
Identified problems can help the consultant better determine a unit choice for your home and if a protection plan is a good choice for you. Installing the correct size air conditioning unit for your home makes a significant impact on your comfort and energy bills. You might think that bigger is always better, but that is not the case. If you purchase an air conditioner that is too large, it will cool your space too rapidly.
This will cause it to continuously shut off and turn back on, which leads to lower efficiency and higher costs and sometimes more air conditioner repairs. On the other hand, if you choose a unit that is too small for your home, it will run constantly to cool the space, and in some cases may never achieve the desired temperature. If you're still unsure which system size is right for you, or if you're having difficulty downloading the Air Conditioner Size Calculator , please e-mail us or call us toll free number at Sizing air conditioners by phone is difficult but we can provide you with the tools to get you started.
Use the lower of the two numbers if your home is well insulated and the higher number if it is older or poorly insulated. Hint: Use the larger of the two numbers above if you're unsure of your home's insulation.
Simply multiply the appropriate factor above by your home's total heated square footage to arrive at your approximate required heating capacity. For example, if you live in the yellow zone, your home is well insulated, and you have heated square feet, the equation will look like this:.
Then, to calculate the output on a gas furnace, multiply its efficiency rating by its listed input rating for the actual Btu output of heat. If you're still unsure which system size is right for you, please e-mail us or call our toll free number at An experienced design technician will be happy to assist you.
Variables such as your insulation, type and number of windows, number of stories, construction type, etc. A general rule of thumb is that if your home is well insulated with newer style windows, you can select the smaller size system that falls within your total square footage.
If your home is two story it will place less of a load on the system in the downstairs area as the second floor acts as additional insulation. The less insulated and more windows within the environment, the more likely you will experience greater air and heat loss.
If you're still unsure which system size is right for you, or if you're having difficulty downloading the Air Conditioner Size Calculator, please e-mail us or call our toll free number at Restrictions apply. Home Air Conditioning Sizing Calculator.
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