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post #21 of 33 Old 01-21-2016
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Re: How do you keep warm?

I've been frozen every night since I got to my boat that had been on the hard in virginia. I was scheduled to go into the water today but crazy tidal ebb with this incoming storm had a different plan.

It's been on average 15 degrees each night for the past week all I've been able to do to keep warm while I sleep is a space heater in the V with me. But it's a nightmare getting out of bed at daylight.. and Lord help me if I gotta pee in the middle of the night. This southern boy is heading back south at the beginning of next week. I can't deal lol
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post #22 of 33 Old 01-21-2016
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Re: How do you keep warm?

Best thing I have bought for keeping warm aboard on cold nights is an electric blanket, and with an inverter I can even run it for a short period to take the chill off if on the hook and not the slip.

I installed lots of foil backed foam board in lockers and its made a HUGE difference, primarily with hull sweating. I still have a lot to do but the work will also pay off in the summer I think.
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post #23 of 33 Old 01-21-2016
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Re: How do you keep warm?

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Originally Posted by T37Chef View Post
Best thing I have bought for keeping warm aboard on cold nights is an electric blanket, and with an inverter I can even run it for a short period to take the chill off if on the hook and not the slip.

I installed lots of foil backed foam board in lockers and its made a HUGE difference, primarily with hull sweating. I still have a lot to do but the work will also pay off in the summer I think.
I like the sound of that, I am thinking of getting the thinest foil covered foam I can find, and do tow layers, one foil out, other foil in. Not sure if it really would matter though.

Stay warm for this storm! Good luck. I will be heading off to take my son back to Cornell so I should be north of the storm. (at least that is the plan!)

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post #24 of 33 Old 01-21-2016
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post #25 of 33 Old 01-21-2016
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Reflectix is the "foil backed packing insulation." The stuff is amazing.
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post #26 of 33 Old 01-22-2016
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Re: How do you keep warm?

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I installed lots of foil backed foam board in lockers and its made a HUGE difference, primarily with hull sweating. I still have a lot to do but the work will also pay off in the summer I think.
Be careful not to use contact cement for attaching the foil-backed styrofoam to the hull - a FRIEND OF MINE did that, and the glue destroys the styrofoam it comes into contact with. The foil backing also comes off in lockers, etc., where it's damper and gets knocked and nicked by stuff. MY FRIEND should have used something tougher or something to protect the insulation from getting damaged, but where intact, it works great for keeping out the cold and keeping the topsides from turning the boat into an oven in the summer.
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post #27 of 33 Old 01-22-2016
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Re: How do you keep warm?

Foil is effective if IR is a big part of the equation--sun light, very hot materials--but I think if you take actual R-value measurements at the temperatures of interest, particularly if the product is installed in the back of a locker or such, the foil does nothing more than a sheet of paper. There is nothing amazing about it and much of the advertising is blatantly false for this sort of application. Bubblwrap, bot example, is about r-1, about the same as a second pane of glass. That said, given how bad the insulation s on non-cored boats, R-1 can be lot.

Sorry for the bad news.

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post #28 of 33 Old 01-22-2016
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Re: How do you keep warm?

The best choice? Ensolite foam or Armaflex has been used for many permanent installation, either self-adhesive or glued-on (contact cement or similar). Yes, it is more expensive, but you will do the job right.

* Flexibility will allow it to make full contact with the hull. This will eliminate condensation and mold behind the insulation.
* Non-absorbent, of course.
* Will deaden sound.
* Much neater.

I have a sneaking suspicion that a boat insulated with most anything else will have reduced resale value, as the surveyor will no it breeds mold.

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Armaflex
Made with Microban, AP Armaflex (www.armaflex.com) is antimicrobial. It is resistant to mold growth, fungi, and bacteria. It is safe (will not contribute significantly to fire), durable, toxin-free (manufactured without CFCs, HFCs or HCFCs) and fiber-free. Water absorption is only 0.2 percent by volume. The closed-cell structure of Armaflex prevents moisture from wicking and makes it an efficient insulation with an R-value of 4.2 per inch of thickness.

Armaflex SA (self-adhering sheet and roll insulation) is a flexible, elastomeric, thermal insulation, with exceptional condensation resistance, as well as sound-dampening characteristics. It is matte black in color, and may be applied as a stand-alone material, without the need for a hull- or headliner to hide or protect it. The adhesive backing is aggressive and adheres extremely well to curved and uneven surfaces, which are properly prepped (surfaces should be cleaned and degreased; isopropyl alcohol works well).

Armaflex is manufactured and supplied in both self-adhering sheets and rolls, and non self-adhering sheets and rolls. Flat sheets dimensions are three by four feet, with wall thicknesses ranging from a half inch to two inches. Rolls are typically supplied in four foot widths of continuous lengths, with thicknesses ranging from three-eighths of an inch to two inches.

The one disadvantage of Armaflex is that it is expensive; ten times as expensive as Reflectix, for instance, and about three times the installed cost of urethane spray foam. However, Armaflex is very easy to work with and apply, and it provides a finished look when used in exposed interiors not already covered and protected by a liner. With ease of installation, and exceptional material properties, Armaflex makes a first-rate insulation for thermal control, sound dampening, and most especially, condensation control.
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post #29 of 33 Old 01-22-2016
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Re: How do you keep warm?

Here is one project from the Frugal Mariner
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post #30 of 33 Old 01-22-2016
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Re: How do you keep warm?

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Originally Posted by jeremiahblatz View Post
Hooie. You'll be able to buy incandescent bulbs in the US for decades. You might have to pay $1 instead of $.50, but there are incandescent allowances written into the law for vibration resistent, reflector, 3-way, candelabra, colored, and other specialty bulbs.

If you can't buy an incandescent bulb at the corner store, that's because they're *terrible light bulbs*.
They banned incandescent bulbs in BC, trying to reduce energy consumption, then discovered that the heat they don't give off, has to be replaced by other energy use. Same total energy use.
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