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  #61  
Old 01-17-2014, 11:49 AM
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MartySantic MartySantic is offline
 
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Location: Davenport, IA
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Same here with the milkhouse heater I used to use before the Reiff. When the fan motor was cold, the fan motor sometimes would not spin the fan blade.

Also, if you must use a milkhouse heater, elevate it by placing on a stool or something. Do not place the milkhouse heater under the plane. Had a hangar fire at KDVN that destroyed the plane. Theory was gas was dripping into the ducting.
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  #62  
Old 01-17-2014, 08:55 PM
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KALEWIS KALEWIS is offline
 
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Location: Jackson, OH
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Installed the Reiff Rotax system during the condition inspection last month. Very effective. Flew on a 30 F deg day, oil temp at startup read 94 deg F. Only needed 5 minutes or so of warmup compared to the 15+ minutes usually needed without the preheat at that OAT.

Plan on getting the cell remote switch they offer. I drape a blanket over the cowl and plug the air intake holes.
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  #63  
Old 09-07-2017, 03:12 PM
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Piper J3 Piper J3 is offline
 
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Default What Size (W x L) Pad Heaters?

I want to add two low-wattage silicone heater pads on my 12 to preheat both the engine crankcase and oil tank. I will use a cell phone switch to turn on the heat a couple of hours prior to flight. Question – does anyone know what size pad (L x W) will fit nicely on the bottom geometry of the 912 crankcase? Also, what size pad (L x W) that will partially wrap around the oil tank?
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Jim Stricker
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80 hrs Flying Aeronca Chief 11AC
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RV-12 E-LSA #120058 AWC 7/12 Bought Flying 10/2015 with 48TT - Hobbs now 317

Last edited by Piper J3 : 09-07-2017 at 03:59 PM.
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  #64  
Old 09-07-2017, 03:40 PM
JBPILOT JBPILOT is offline
 
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Location: Jesup, Iowa
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I would highly recommend the REIFF pre-heat for the 912 engine. It has an FAA approved number on it. Works very good. You need to warm the oil tank also. If not, you will be feeding in cold oil the second it starts. You will burn more gas waiting for the oil in the tank to warm. Also, if you don't have it already, install the Thermostasis oil therm. Speeds up ready to fly oil temps much quicker. I feel they both pay for themselves in time.
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  #65  
Old 09-07-2017, 08:56 PM
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KALEWIS KALEWIS is offline
 
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Quote:
Originally Posted by Piper J3 View Post
I want to add two low-wattage silicone heater pads on my 12 to preheat both the engine crankcase and oil tank. I will use a cell phone switch to turn on the heat a couple of hours prior to flight. Question does anyone know what size pad (L x W) will fit nicely on the bottom geometry of the 912 crankcase? Also, what size pad (L x W) that will partially wrap around the oil tank?
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I 2nd the reiff system for the rotax. No measuring or cutting, it's ready to install and simple at that.

2 hours is not long enough with any preheat system like reiff or tanis. In cold temps below 40f I turn it on at least 12hrs before flight. Reiff has a thermostat that shuts off at 150f. I've never seen oil temps above 110 on the skyview before starting with the system plugged in overnight.
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  #66  
Old 09-08-2017, 07:24 AM
PilotBrent PilotBrent is offline
 
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Quote:
Originally Posted by Piper J3 View Post
I want to add two low-wattage silicone heater pads on my 12 to preheat both the engine crankcase and oil tank. I will use a cell phone switch to turn on the heat a couple of hours prior to flight. Question does anyone know what size pad (L x W) will fit nicely on the bottom geometry of the 912 crankcase? Also, what size pad (L x W) that will partially wrap around the oil tank?
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Installed EZ Heat system several years ago and it works great (when I remember to put the timer on and run it for several hours). One pad on lower half of oil tank, other one on bottom of block (pad fits fine on Rotax per your question if you are using the EZ Heat pads in your picture). On coldest days I will also place hair dryer on left cowl air intake when arriving at hanger which adds a little more warmth to the top of the engine via the shroud.

FYI for EZ Heat - Recall that I contacted the manufacturer to source one that had detachable electrical plugs on the pads to make removing the oil tank easier. Answer - for safety regs they did not offer that. So I just installed my own. I don't physically remove the tank from the engine very often (use drain plug), but if you don't made that mod, the power wires are fairly short making occasional Rotax oil tank cleaning more awkward to complete.
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  #67  
Old 09-08-2017, 09:55 AM
DHeal DHeal is offline
 
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Location: Windsor, California
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I also installed the EZ-Heat system (pictured above) in my RV-12 three years ago. It is inexpensive, easy-to-install, and works well. Granted I live in relatively balmy northern California (winter lows @ 30 degrees F). I typically use a timer to provide about 2-3 hours of pre-heating and all is toasty and ready to go. I also place an 18" Golden Rod dehumidifier tube in the cockpit during the winter to keep the cockpit warm and drive out moisture -- not really sure as to its effect, but it is easy to do.
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  #68  
Old 09-09-2017, 06:59 AM
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Piper J3 Piper J3 is offline
 
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Anyone have a picture of how the EZ Pad is mounted to the RV-12 oil tank? Is the pad flexible and allows curvature to conform to the tank? I'm leaning toward EZ Pad installation with cell phone remote switch/timer.

Thanks in advance...
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Jim Stricker
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80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC 7/12 Bought Flying 10/2015 with 48TT - Hobbs now 317
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  #69  
Old 09-09-2017, 10:18 AM
DHeal DHeal is offline
 
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I have no pictures, but one pad gets easily glued onto the exposed lower front portion of the oil tank. The pad is sufficiently flexible to match the curvature of the tank. The second pad gets glued to a flat portion of the bottom of the crankcase. The "glue" they provide has worked well for me over the past 530+ hours.
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David Heal - Windsor, CA (near Santa Rosa)
EAA #23982 - EAA Technical Counselor and Flight Advisor; CFI - A&I
RV-12 E-LSA #120496 (SV w/ AP and ADS-B) - N124DH flying since March 2014 - 560+ hours (as of Oct 2017)!
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  #70  
Old 09-21-2017, 02:11 AM
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Piper J3 Piper J3 is offline
 
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I have installed the E-Z Heat preheater for the 912. Nice clean installation.

Next is to turn heater on/off with remote cell phone switch. I ordered this unit from eBay for $30 including shipping... https://www.youtube.com/watch?v=vYzthAVYBCk
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Jim Stricker
Hinckley, Ohio
PPL - 1970
80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC 7/12 Bought Flying 10/2015 with 48TT - Hobbs now 317
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