“I have a 1,500 sq ft house. How many mini splits do I need?” This is a standard question about the number of mini splits required. A 1,500 sq ft house would need about 30,000 BTU (2.5 ton) of cooling output; that means you would need 1, 2, or 3 mini splits (we talk about … Read more
Mini split is truly a wonder of modern HVAC engineering. This is the first ductless air conditioning and heating solution. The ability to cool and heat (at extremely high efficiency) is outstanding. Today, we will look at how does a mini split work. We will explain how mini splits can both cool (in the summer) … Read more
In HVAC systems, we always have to think about airflow (measured in CFMs). One of the most common CFM-related questions we get is this: “How many CFM per ton of cooling?” In most situations, you would need a 400 CFM per ton of cooling. This is the standard HVAC rule of thumb, but it’s a … Read more
“Will a 3000-watt generator run an RV air conditioner?” In RVs and campers, electricity requirements matter. This is the type of question we want to answer when figuring out how many watts or amps does an RV AC use. In most cases, we want to know if a generator with X watts or X amps … Read more
What breaker size do you need for a MrCool mini split? That’s quite easily answered. If you are wondering what fuse size (in amps) you need for your MrCool unit, just check the specification sheet. You will find all Mr Cool mini split electrical requirements. Every MrCool specification sheet has a line with “Maximum Fuse … Read more
A lot of people are quite confused about PTAC units. Often, you see questions like what does PTAC stand for in HVAC, what PTAC actually is, what are the common problems with PTAC units, and so. In short, we wanted to address all these questions regarding PTAC units. On top of that, will also show … Read more
We use air conditioners to lower indoor temperatures. Usually, they are needed most when it’s hottest outside. A reasonable thing would be to look into the relationship between outside temperature and the AC unit. Namely, does outside temperature affect the air conditioner? In one word: Yes. Of course, the outside temperature affects the air conditioner. … Read more
In the summer heatwave, temperatures easily pass 100°F. To fight this heat, we use air conditioners. The key question here is this: How cool should my house be if it’s 100°F outside? In most cases, it is recommended that you set your thermostat at 72°F. However, with extremely high temperatures, you might want to set … Read more
Running a dehumidifier and air conditioner at the same time: Does it makes sense? Should you even do it? When to use a dehumidifier with air conditioner? There is some confusion about if you should run a dehumidifier and air conditioner at the same time. The answer here is not all that obvious at all. … Read more
“Do portable air conditioners need to be drained?” Yes. All portable AC units accumulate moisture and need to be drained regularly. AC units both cool and reduce humidity. The gathered water needs to be drained. This means either manual drainage (#1 way) or automatic drainage (#2 and #3 ways). How to drain a portable air … Read more