Let’s say that you have a 1.5-ton air conditioner. You what to know how much you will have to pay to run such an AC unit. In the article, we will help you figure out how many watts does a 1.5-ton AC unit and how you can calculate the running costs. Further on, you will … Read more
When you are trying to figure out the size of HVAC devices such as air conditioners, you will sometimes need to convert tons to kW (kilowatts). Converting tons of refrigeration to kW is very easy. To help you out, we have created an easy-to-use ton to kW calculator that automatically converts tons of cooling to … Read more
Alright, there are many times when you will have to convert kilowatts or kW to tons of refrigeration. Luckily, converting kW to tons is dead simple. To help you out, we have created a kW to tons calculator that automatically converts kilowatts to tons. Further on, you will also find a kW to tons conversion … Read more
How fast does an AC cool a house? This is the key question we have to answer before we can answer how long should it take to cool a house from 80°F to 72°F. As you might imagine, how long does it take to cool down a house depends on several factors. Theoretically speaking, we … Read more
ESEER is one of the most accurate metrics for determining the energy efficiency of air conditioners. In HVAC, we already have a lot of these ratings; you might be familiar with EER and SEER ratings, some may even have heard of CEER and IEER rating. Example: A portable air conditioner can have an EER rating … Read more
In HVAC, we have several metrics that denote the energy efficiency of air conditioning units. These include EER, SEER, CEER ratings. The newest – and the most accurate – addition to the family is the IEER rating. The IEER rating is slowly replacing the old EER rating and even the newer SEER rating. Here is … Read more
EER and SEER ratings are both metrics that determine the energy efficiency of air conditioners. Since they measure the same thing, we will look into how they differ in the EER vs SEER overview. Example: A mini split air conditioner has a 19 SEER rating and a 12.7 EER rating. What does that mean? First … Read more
The single most important metric of any portable air conditioner is capacity. This denotes how powerful a portable AC unit is. The problem arises when we see 2 different numbers for capacity: BTU ASHRAE. These are British Thermal Units, measured by the American Society of Heating, Refrigeration and Air Conditioning Engineers. This is the old … Read more
Nobody can properly size the ductworks without a duct sizing chart. HVAC duct sizing chart answers one simple question: “What size should my ducts be?” The dimensions of ducts (be it flex, metal, round, or rectangular) determines the airflow (measured in CFM). Example: How many CFM does a 6-inch duct have? A rectangular 6×6-inch duct … Read more
Calculating BTU doesn’t have to be difficult. If you correctly measure the square footage and know the room/home layout, you can calculate the BTU requirements for any air conditioner or heating unit (with under 8.5% accuracy). You can do it yourself using the simple 3-step guide described further on. BTU or British Thermal Unit is … Read more