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Wiring

Amp Breaker Max Wattage Calculator: How Many Watts Can Breakers Handle?

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measuring max wattage of 20a amp breaker

With every amp breaker, it is useful to know how many watts they can handle. We are talking about maximum allowable wattage (using 80% NEC rule for continuous loads). To help you figure out max wattage of any amp breaker, we have prepared these 2 key resources: Amp Breaker Max Wattage Calculator. Here, you just … Read more

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How Many Watts Can 8 Gauge Wire Handle? 8 AWG Max. Wattage

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how many watts can a 8 awg wire handle

8 gauge is quite a common wire size. Obviously, it’s quite useful to know how many watts can an 8 AWG wire handle. We are talking max. wattage here. Let’s break this down quickly: 8 AWG wire can handle anywhere from 192 watts to 24,000 watts (this is for 8 AWG aluminum wire at 6V … Read more

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Wire For 220 Volt Circuits: AWG Gauge Chart For 10-200 Amps

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220v wire sizes

What gauge wire for 220V? Exactly the right wire gauge for 220 volts can be a bit confusing for many homeowners. That’s why we will explain how to size a wire for any 220V circuit. On top of that, we have also created a 220V Wire Size Chart below (it tells you want AWG wire … Read more

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90 Amp Wire Size Calculator + Chart (0-500 Feet Runway)

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90 amp aluminum wire

Alright, figuring out what size you need for 90 amp service is fairly certain. We will have to consult the NEC 310.16 table for copper and aluminum wire capacities. On top of that, we will have to account for voltage drop if we want to have a 90 amp service 50, 100, 150, 200 feet … Read more

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125 Amp Wire Size Calculator + Chart (0-500 Feet Away)

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125 amp wire sizes

Figuring out a 125 amp wire size is fairly easy. We’ll show you how to figure that out. Where it gets a bit more difficult is at 125 amp service 50 feet, 100 feet, 150 feet, 200 feet, and up to 500 feet away. Here we have to account for voltage drop; we’ll explain how … Read more

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400 Amp Wire Size Calculator + Chart (0-500 Feet Runway)

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For 400 amp service, we can rule out the standard AWG wires. We have to use thick kcmil copper and aluminum wires. On top of that, we have to account for voltage drop for services some 100s feet away. Alright, here is how you can figure out any wire size, including for 400 amp service: … Read more

Categories Wiring 2 Comments

150 Amp Wire Size Explained: Calculator + Chart (0-500 Feet Away)

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150 amp copper wire

For 150 amps, we will need quite a thick wire. Which wire gauge is needed for 150 amp service? We will look into a 150 amp service wire size at 0 feet. On top of that, we will also calculate the 150 amp wire size for service 50 feet, 100 feet, 150 feet, 200 feet, … Read more

Categories Wiring 2 Comments

80 Amp Breaker Wire Size + 80A Wire Size 0-500 Feet Away

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80 amp wire size

If you want 80 amp service, you have to adequately size your breaker and pick the right sized wire. This is not all that simple, since we have to account for National Electricity Code (NEC) rules. To help everybody out with 80 amp circuits, we are going to answer both of these questions: What size … Read more

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25 Amp Breaker Wire Size + 25A Wire Size 0-500 Feet Away

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25 amp wire size

Alright, many homeowners have a problem with wire sizes. Here, we will focus on the 25-amp wire size. Some parts of this might be a bit complex, but when you boil it down, we are simply going to address these two questions: “What wire gauge do I need for a 25 amp breaker?” This one … Read more

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Wire Gauge For 15 Amp Service + 15 Amp Breaker Wire Size

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15 amp wire size

Alright, figuring out wire size for a 15 amp service and 15 amp breaker seems easy in theory. In practice, we have to account for the distance from the source (15 amp wire size for 15 amp service) and the 80% NEC rule for 15 amp breaker sizing. We will show you exactly how to … Read more

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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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