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I’m sorry I started a thread that became unpleasant. When I spoke to my electrician he said as long as it is connected to the correct sized breaker an unfused disconnect can be used. I chose to use a fused disconnect and a surge protector just in case. It works fine and was only a few more...

So I finished installing the unit and it came out well. I used 8 awg wire, 30 amp fused disconnect and a 30 amp breaker. I also installed a surge protector. I must say it was very easy to install and the unit works great for AC so far. I’ll see how the heat is in the winter. Using 8 gauge wire...

If l use a 30 amp fused disconnect, it shouldn't hurt right?

He said if it's connected to a 30 amp breaker, a fused disconnect is not needed. And If the breaker was bigger than 30amp, then a 30amp fused disconnect would need to be used. Is he mistaken? If so, how?

I spoke to an electrician friend of mine and he said the following - I can connect to the existing 8awg wire and keep going to the disconnect box. Switch out the breaker to a 30 amp. He said the disconnect doesn't matter, I can get any size unfused disconnect as long as I have a 30amp...

I'm looking at this wire closer and the text on it says 8 gauge with a 10 gauge ground, sorry for the mistake. So I can add onto this with 8/2 wire the rest of the way. Might be overkill but it's already half way there. And the manual says 8 AWG is "preferred"

Yes, I know i need to change the breaker. So a 30A would be best?

I apologize, it is 10/2 2 wires and a ground.

Last night I looked at what is there and the existing heater has 10/3 wire going to it. If I can use the existing 10/3 wire I would need to add about 25 feet. The total run would be about 45-50 feet. Right now the breaker is 50A.

Can anyone help on this? I was hoping to pick up what I need soon. Thanks!

Here is the label on the side of the unit-

OK, I will post the label later.

I have 10 gauge going to an electric heater halfway to where I would want to mount the disconnect box. I'm going to decommission the heater so can I just connect to that wire once I disconnect the heater and run it to the disconnect box?

Oh, I see the reply you got from MrCool that said a non-fused disconnect was OK. What fuse size did you need to get for the disconnect? I'm glad it's working good! I'm excited to install this.

Ah, I see this can get confusing. I believe you have the same unit that I have but will confirm later. So you used 12 gauge wire, 25 amp breaker & a non-fused disconnect I see. Everything seems fine? How is the unit working for you? Also, which disconnect did you go with?

I do have the unit but I didn't open it up yet. I will when I get home from work tonight and post the label.

I have a MrCool 4th gen DIY 18k unit that I am going to install and just want to make sure I'm using the correct items. It says in the manual for the 18k unit it is preferred to use 8 awg - So I'm going to use 8 gauge wire from the panel to the unit but I want to make sure I am getting the...

Thanks Loganb, that is alot of information. I’m not going to be able to do spray insulation, I can’t afford it unfortunatel. I’m going to do it myself with fiberglass. I’m going to do R-21 on the walls and R-30 on the ceiling downstairs. Upstairs I’m going to put R-30 where it will fit, R-21 on...

The ground level will be for working on projects and cars, I will be spending time in there mostly on the weekends. The second floor will be used for storage right now but in the future I would like to take half of it and use it as a music studio. I have a 10,000 btu heater on the ground level...

I am insulating my new 2 car detached garage with a room roof truss on the second floor. The garage is 25X25 with a 10’ ceiling. My question is should I insulate the ceiling on the 1st floor also? Or should I just insulate the walls on the first floor and the roof trusses on the second? I am...