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 > Your search for posts made by 'pianotuna' found 1735 matches.

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RE: Need opinion on portable oxygen concentrator

Hi Edd505, Umm what do those numbers mean? Are they good, bad, or ugly? 13.2 LBS 70%pure @2L 50%pure @3L
pianotuna 11/24/17 06:55pm RVing with Disabilities and General Health Issues
RE: Spray Foam Undercoating / Insulation

Hi, I don't skirt as I'm on the road too much. I have looked into spray foam and have decided against it. I feel that high pressure spraying of slush from the road might well penetrate and then never dry out. If planning on using lots of electric heat, then upgrade the "stab" connectors with real screw terminal outlets. I solved the cold floor problem with electric heated carpets. The safest heaters may be the oil filled units. The surface temperature doesn't get hot enough to scorch materials. My waste tanks and valves are enclosed. Some one at the factory failed to install a heat duct. I added a 600 watt heater on a mechanical thermostat. I replaced the cold air return grill with dual window fans. They are on a mechanical thermostat and keep the fresh water lines from freezing. The peak electrical load is about 7000 watts. I added two auxiliary shore power cords which gives me OEM 30 amp, 20 amp, and 15 amp inputs. I power those from a 50 amp pedestal where I use a break out box to give me a 30 amp on one leg and dual 20 amp outlets on the other. Remember that, for continuous duty, a 30 amp circuit should not be driven past 24 amps, 15 to 12 amps and 20 to 16 amps. I am able to successfully heat 100% electrically, provided that there are adequate shore power outlets. I have had occasion to use an autoformer to boost voltage during the winter months. There is a great thread on winter camping in the full time forum. I've used my RV wet at -37 c.
pianotuna 11/24/17 02:27pm Fifth-Wheels
RE: inside wall repair

Hi, On my 1987 I injected the wall with expanding foam.
pianotuna 11/24/17 01:49pm Fifth-Wheels
RE: Portable Generator Battery

Hi, My kipor generator battery lasted from 2002 until 2009 when I made the mistake of replacing the generator with a boiley.
pianotuna 11/24/17 01:43pm Tech Issues
RE: LED versus regular flashlight bulb...more strudy?

Hi, There are 50 solder points on an led bulb. That may have an effect due to vibration. I have one that flashes one led of about 30 on and off. It is highly annoying. I wish it would burn out--but no such luck!
pianotuna 11/24/17 01:42pm Beginning RVing
RE: Need opinion on portable oxygen concentrator

I see some concentrators on Amazon for under $500. Any opinion on these? I'll be needing one for a guest when traveling in Canada and in early March, 2018. https://www.amazon.com/dp/B06WLPX9PZ/ref=nav_timeline_asin?_encoding=UTF8&psc=1
pianotuna 11/24/17 12:22pm RVing with Disabilities and General Health Issues
RE: I want one!

Hi Mex, And then there is the distinct possibility of another Carrington event. https://en.wikipedia.org/wiki/Solar_storm_of_1859 Reality Check re: Utilities and Assumptions
pianotuna 11/22/17 05:01pm Tech Issues
RE: Canada WIFI -- Mobley -- a few weeks.

Hi TenOC T-Mobile has identical coverage to the "big three" cell companies in Canada. It is unlimited data in Canada. Get a "no contract" plan. You may wish to check out Metro PCS as well. Give the route there may be areas that have no cell phone service.
pianotuna 11/22/17 11:06am Technology Corner
RE: Alberta to Tennessee

probably too cold for a bike unless you have heated suits
pianotuna 11/22/17 10:56am RV Parks, Campgrounds and Attractions
RE: I want one!

The grid is decrepit. In 1957 an 1100 square foot apartment only required a 40 amp service. A building with 43 suites has a main fuse of only 1000 amps. How do I know? I just paid for upgrading to 70 amps which including drawing #3 wire in a 1 inch conduit for 100 feet (with two bends). I would be hard pressed to charge an electric car from the 15 amp service to my parking spot--but I hope to be able to afford to do so some day.
pianotuna 11/22/17 06:21am Tech Issues
RE: Inverter On or Off

Hi, Nice inverter. Now all we need to know if it is an inverter, or an inverter/charger. In the first case--leave it off. If it is an inverter/charger, leave it on, unless the RV is going to be in storage.
pianotuna 11/21/17 05:46pm Tech Issues
RE: Inverter On or Off

specific make and model would help.
pianotuna 11/21/17 10:34am Tech Issues
RE: No power from genset

circuit breakers on the generator.
pianotuna 11/19/17 06:15pm Tech Issues
RE: Winter battery maintenance

charge them. disconnect the positive posts. reconnect in spring or first trip.
pianotuna 11/19/17 06:14pm Class A Motorhomes
RE: solar

pianotuna 11/17/17 08:57pm General RVing Issues
RE: Solar trickle charger help

Hi Boon Dooker, 150 watts X .98 MPPT =~ 147 / 12.6 volts =~ 11.6 amps when using an Mppt controller. When panels were $5.50 per watt this made great sense. I do harvest up to 21 amps from 256 watts of solar wired in series/parallel for 33 volts input to a Blue Sky 3024 controller. That is with a flat fixed installation. The harvest would be lower with PWM. With panels as low as $0.24 cents per watt, adding more panels is today's solution. I don't think you are going to get 12.5 amps from a 150 watts of solar, seeing as the average amperage for a 100 watt panel is around 6 amps. To get 12.5 amps you would need 200 watts of solar. Plus you have to take into consideration that the sun is not always shining at 100%
pianotuna 11/17/17 08:47pm Travel Trailers
RE: Solar trickle charger help

Hi Boon Docker, There is little point in having more than 150 watts of panels per 100 amp-hours. The acceptance rate, for a flooded lead acid jar, at 85% state of charge, is around 12.5 amps per 100 amp-hours (or about 150 watts). 60 watts is enough to allow for equalization. For my detailed thoughts on solar, surf here: https://freecampsites.net/adding-solar/ Raven52, Start with an energy audit. From that, size the battery bank. From that allow 60 watts per 100 amp-hours of storage. What he said but I prefer 120 to 140 watts per 100 aH of battery X2 A minimum of 100 watts of solar per 100 AH of battery, the more watts the better.
pianotuna 11/17/17 04:31pm Travel Trailers
I want one!

Hi All, 500 mile range loaded to 80,000 pounds. 30 minutes to recharge to 400 mile range. It may be self driving, too. https://www.greencarreports.com/news/1113863_tesla-semi-500-mile-range-lower-running-costs-than-diesel-and-its-fast
pianotuna 11/17/17 04:13pm Tech Issues
RE: (Another) Rough electrical question

Hi Naio, Nice to hear from you. I would not use "stab" connectors of any kind. I would not use extension cord material. If using stranded wire then the ends need to be made into an appropriate size "hook" and tinned. Or get the crimp on "ends". My inclination is to over build so I'd use #12 wire. I would use female outlets intended for 20 amp. I would buy Hubble outlets if I could find them in the size I wished to have. My RV is Canadian built and has solid wire romex. It did come with stab connectors--but those have all be replaced. When I changed them out, some had already shown signs of failure. I do tighten the screws in the breaker box once per year. After the initial tightening, none have been loose. But I push my wiring HARD by heating electrically--so I want to know they are tight.
pianotuna 11/16/17 08:24pm Tech Issues
RE: Solar trickle charger help

Raven52, Start with an energy audit. From that, size the battery bank. From that allow 60 watts per 100 amp-hours of storage.
pianotuna 11/16/17 08:12pm Travel Trailers
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