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AC Calculators And Converters

Air Conditioner EER Chart: Which AC Unit Is The Most Energy Efficient?

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what is a good eer rating for an air conditioner

We can all agree that having the most energy-efficient air conditioner is invaluable. Nobody wants to face the summer heatwave without something to cool the house down. About 6% of our yearly electricity bill is generated by a single device – the air conditioner. It would make sense to get the most out of an … Read more

Categories AC Calculators And Converters 17 Comments

How Many BTU Air Conditioner Do You Need? (+ AC Size Calculator)

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What size air conditioner do I need? There are several metrics you should consider before buying an air conditioner. You have different EER and SEER ratings, power, amperage, voltage, and so on. The most important metric is the cooling capacity (measured in BTU/hr). It denotes the size of your air conditioner. BTU meaning: British Thermal … Read more

Categories AC Calculators And Converters, Air Conditioners 215 Comments

BTU/h To kW Air Conditioning Calculator (Simple Converter)

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calculator that converts btu to kw for air conditioners

The US and UK-produced air conditioners always have the same capacity unit: BTU/h or British Thermal Units.  When it comes to measuring the power (capacity) of an air conditioner, everybody else (Europeans and most of the world) use kW or kiloWatts. The question here is obvious: How to convert BTU to kW? It’s quite simple. … Read more

Categories AC Calculators And Converters 7 Comments
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Relevant HVAC Certificates:

energy efficiency guide

HVAC metrics:

SEER = (1 × EER100% + 42 × EER75% + 45 × EER50% + 12 × EER25%)/100

EER = BTUcooling/W

HSPF = BTUheating/W

COP = Q (useful heat)/W (input work)

ACH = CFM x 60/Area x Heightceiling

Total Heat (BTU/hr.) = 4.5 x CFM x Δh (std. air)

Sensible Heat (BTU/hr) = 1.1 x CFM x Δt (std. air)

Latent Heat (BTU/hr) = 0.69 x CFM x Δgr. (std. air)

1 HP = 746 Watts

1 kW = 3413 BTU

 

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