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HVAC Services

7 Best HVAC Experts In Chicago For Air Conditioning Repair

1st January 202128th July 2020 by LearnMetrics
chicago hvac technician repairing an air conditioner

Chicago is the windy city. All that wind doesn’t help much in a hot summer, however. Without an air conditioner, Chicago summer can be excruciatingly hot.  It’s almost impossible to live without a working air conditioner in Chicago. Most people know the struggle the moment their AC unit breaks down. That’s when you start looking … Read more

Categories HVAC Services 1 Comment

Relevant HVAC Certificates:

energy efficiency guide

HVAC metrics:

SEER = (1 × EER100% + 42 × EER75% + 45 × EER50% + 12 × EER250%)/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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