I have just picked up a Thermarest that was mine about 15 years ago. I wouldn’t mind knowing it’s R value. I am wanting to use it in the Blue Mountains in a bit over a month’s time. I hoping it is OK for the cool nights at that time of year. It is red on top and brown on the bottom. It’s 52 x 182cm. There is no model printed on it. All it has on it is “The Original Therm A Rest” and a serial number and made in the US...
Thanks
Thermarest Info
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TIP: The online Bushwalk Inventory System can help bushwalkers with a variety of bushwalk planning tasks, including: Manage which items they take bushwalking so that they do not forget anything they might need, plan meals for their walks, and automatically compile food/fuel shopping lists (lists of consumables) required to make and cook the meals for each walk. It is particularly useful for planning for groups who share food or other items, but is also useful for individual walkers.
TIP: The online Bushwalk Inventory System can help bushwalkers with a variety of bushwalk planning tasks, including: Manage which items they take bushwalking so that they do not forget anything they might need, plan meals for their walks, and automatically compile food/fuel shopping lists (lists of consumables) required to make and cook the meals for each walk. It is particularly useful for planning for groups who share food or other items, but is also useful for individual walkers.
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Greenie - Athrotaxis cupressoides
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Re: Thermarest Info
by juney » Tue 29 Jun, 2010 7:07 pm
Hi Greenie,
Have a look at how thick your mat is. If it's 2.5cm then it's an ultralite - kind of like the more recent prolite 4/ prolite plus with an R value of 3.6/3.8.
If it's 3.8cm thick then it's a guidlite, like the prolite 3 / prolite with an R value of 2.5.
Cheers,
Juney
Have a look at how thick your mat is. If it's 2.5cm then it's an ultralite - kind of like the more recent prolite 4/ prolite plus with an R value of 3.6/3.8.
If it's 3.8cm thick then it's a guidlite, like the prolite 3 / prolite with an R value of 2.5.
Cheers,
Juney
- juney
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Re: Thermarest Info
by Greenie » Tue 29 Jun, 2010 7:37 pm
Thanks! I don't have with me, but I would say it is 2.5cm thick. I just brought a prolite from another forum member, it is so much smaller that the old one.
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Greenie - Athrotaxis cupressoides
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Re: Thermarest Info
by juney » Fri 02 Jul, 2010 9:21 pm
OOPS
I see I wrote the info re. the mats the wrong way round. The 2.5cm =ultralite = prolite/ prolite 3 R2.5
guidelite =3.8cm= prolite plus/ prolite 4 R3.8/3.8.
Cheers,
Juney
I see I wrote the info re. the mats the wrong way round. The 2.5cm =ultralite = prolite/ prolite 3 R2.5
guidelite =3.8cm= prolite plus/ prolite 4 R3.8/3.8.
Cheers,
Juney
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Re: Thermarest Info
by Tony » Fri 02 Jul, 2010 9:33 pm
Just some not so important information.
Sleeping mat R-value units are stated in US R-value units, not SI R-value as we use in Australia.
1 SI R-value unit = 5.7 US R-value units
Tony
Sleeping mat R-value units are stated in US R-value units, not SI R-value as we use in Australia.
1 SI R-value unit = 5.7 US R-value units
Tony
There is no such thing as bad weather.....only bad clothing. Norwegian Proverb
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Tony - Athrotaxis selaginoides
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Re: Thermarest Info
by Ent » Fri 02 Jul, 2010 11:57 pm
Hi Tony
Thanks for that. I thought all mats were comparable in R value but appears not to be the case. Exped down mat is greater than five but five what now I wonder?
Cheers Brett
Thanks for that. I thought all mats were comparable in R value but appears not to be the case. Exped down mat is greater than five but five what now I wonder?
Cheers Brett
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Ent - Lagarostrobos franklinii
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