As Old Biscuits said, the voltage drop over that distance at 30a is pretty low, so unless you're running two air conditioners hard and trying to use other electric appliances at the same time, you should be fine.
This is my first post here as well, though I've been reading along with the digests they send me in email every week, or mabye bi-weekly, for a few years now. I've learned so much and even had a few fun surprises along the way when I'm sure I know the answer to a problem and it turns out I was wrong and it was something I'd never heard of before!
Kind of like playing along with Wheel of Fortune! Hehehe
I don't have my RV in my signature yet, just as well since I've never gotten to use it yet, lol. It was a 'good deal' that I saw being sold on one of those grocery store corners where people park their cars to sell. Never owned one before and the previous guy said they used it for hunting, the insides were half stripped down like someone had started to renovate it and just stopped. Oh. If I had just gotten my jack of all trades mechanic neighbor to look at it first! Lemon is an understatement, ROFL.
Roof leaks and rotted around solar light window in shower, right quarter panel damage from hitting something apparently shifted the fiberglass she'll up front, pushing the windshield out of it's seal (how did I not see THAT!!) Had to work on both AC units, had to repair generator, had to wire in second breaker on generator since both AC units were on the same one, lol. ALL window seals leaked in a downpour!! Oh, and apparently the guy dropped the nut off the air filter cover down into the engine, I had a stuck valve so I tried all kinds of stuff to free it. It came unstuck alright!! Like angry bees in the engine going down the highway for about 5 or 10 seconds before it blew through the Piston! Ouch!!
Fixed THAT. It's been sitting there annoying my wife for a few years now, I've been seriously been thinking about just giving it to my mechanic neighbor. He'd have it touring and looking new in a few months, ROFL. On the other hand, it burns me that I've spent more money on it than I did going through my boat phase, hehe, and I want to fix it!! Health has been my big holdup though.
Oh, forgot the hot water heater issue! Gas only and the thing wouldn't fire over from the control module in the kitchen. No sparky sparky sound from the igniter. Being very un-technician like (shame on me!! Retired HVAC guy) I just ordered a replacement ignition board. Installed it and.... Nothing! Scratched my head then decided to use my tiny brain!
Got out the voltage meter and checked for power at the ignition module. Nothing. Argh!! (Forgive me for not being more specific about that, it's been a few years)
Grabbed a 12v battery and some jumper leads and wired it direct, fired up after a few tries and proceeded to make hot water! Great, just lug a battery outside to take a shower, lol.
Getting to the water heater wiring from the inside will require either jamming myself up under some cabinets at a weird angle (not happening with my back), taking some cabinets apart, or trying to drain the tank and pull it out from the outside, but no guarantee that I will get far with stuff attached on it from the inside. Ah, I had found mice nests under the kitchen drawers there, so they probably chewed through things!
The roof should be the biggest hassle, well besides the front end, since the black (black?!?) Roof rubber, or tar or something, has baked the surface dry into a fine powder that gets all over everything it touches. I recall reading someone somewhere saying that alcohol can clean/renew the surface so that future app!ication attempts will stick.
Oh! Sorry, anyway didn't mean to try and hijack the thread, just wanted to originally comment on the electricity issue and mention my water heater fun!! No need to comment on my stuff, just laugh and groan with my pain, hehehe.
Thanks to everyone here that offer so much help to everyone and congrats to OP on getting your water heater up and running!!
P.s., just saw that I have six posts! Holy cow my memory is gone, I don't even remember posting before, wow I'm losing it!! Lol.