I noticed this is your first post...welcome to the CF!
We're liveaboard's here in Washington
, probably close to where you are...Poulsbo to be exact.
Living aboard in the Sound is tough in the winter...doesn't matter what size boat you have. Winds come up, docks get icy, and of course the usual rain...clouds...rain...clouds...Oh!... and then more rain! Still, living here in the winter or summer is one of the best kept secrets. It's quiet and the aquatic life is active...rent is cheap
(so far), and away from the big cities anyway...space is usually available.
We've lived aboard here in Washington now for the last 10-15 years or so (Port Angeles, Sequim, Port Townsend, Olympia, Seattle
, Tacoma...now Poulsbo). Anyway...we have a dehumidifier and it works wonders...wouldn't live without it but mostly they are large-ish and cumbersome so that is a consideration on a smaller boat. Dehumidifiers don't take a lot of power (relative to say...heaters)...but power is always a consideration. (I'll deal more with power in a minute)... With a 27 footer even a small compact over-under washer/dryer is really going to present some space and power problems. I can't see that working that well on boat under 30 feet but I have seen it done!
Okay... so power is really a bigger issue as most marinas
usually only have a 20 or 30 amp connection. That means a limit on heat and other energy consuming devices you can have on your boat. Even if you can get more power (say the marina lets you use two connections)...your boat may only be wired for 30 amps so that will present an issue...regardless of how much power is available on the dock!
Nothing like having your power trip off in the midldle of a sub-zero winter night to wake you up to the reality of living on a boat in the winter. Also there is the bigger issue of the type of heat you're going to use and a much bigger topic you can research
on this forum. Anyway...
In the last 15 years we've always used the laundry
facilities at the marina. Showers?...who ever told you that showers on board are bad in the winter in Washington is dead wrong! if you have a good shower sump
and plenty of hot water, then you shouldn't have any problems. Mold
?? You live in Washington...need I say more? Just joking of course...We've never really had a mold
problem except outside on our sail covers and some of the darker corners of the boat. Just keep things mopped up, (warm and dry is good)...and it won't be that big of deal. A good
shower aboard depends on the quantity of hot water and a good sump system. Be sure and check the other threads on shower sumps as
it's a really big deal if they don't work right.
As far as hot water quantity..that's a personal issue and depends on the size of your HWH. Ours is a 12 gallon model (we had a 6 gallon model and it worked fine for cruising, but not so good for daily liveaboard). We now have a 12 gallon HWH that I swear by because it never seems to run out!!). BTW...until we retired, both my wife and I lived aboard and worked full time...which means laundry and showers were paramount as we both had professional (make that "dress-up") kinds of jobs...and we survived just fine.
Living aboard in the winter is a challenge anywhere it's colder...but we wouldn't trade
it for the world. Once you get it set up and can adapt to the lifestyle it's awesome!!...at least it was for us but good preparation is paramount or you'll be miserable. Continue doing your homework, check with others, and go for it...the rewards are worth it!
Hope this helps a little. We've living aboard now, heading out to Mexico
and points west in the very near future...luck and fair winds to ya!