Subject: Ah, the Joy of Life in Tents

From: [email-masked] (Nick Pine)
Date: 21 Jun 1995 08:56:15 -0400

When will Real Goods start selling a solar tent for wintertime camping or
sunbathing? An 8' x 4' x 4' pup tent, say, with a UV-transparent Tedlar wall,
an R4-padded North wall, and a space blanket to make a ground reflector on
the South side. This would collect about 16K Btu/hour in full sun, and with a
sleeping bag on the floor, most of the losses would be through the South wall:
(70F-Ta) x (32ft^2/R1 + 32ft^2/R4) = 16K ==> Ta = 70 - 16K/40 = -330F, which
should work at the beach in the wintertime, except when it's REALLY cold...

Nick