Recent posts

#1
General Forum / Is 1/2 inch Copper Line big en...
Last post by JonBee - Yesterday at 12:04:41 PM
I'm setting up propane at my off-grid cabin and want to sanity-check my line sizing before I finalize things - the 1/2 copper line running from 500 Gallon propane tank to the cabin.

Current setup:
- 500 gal propane tank outside
- approx 80 ft run from tank to cabin of 1/2" copper line

Inside loads:
- Rinnai RX160iN tankless water heater (~160,000 BTU)
- Gas range (~60,000 BTU total)
So roughly ~220k BTU demand if everything runs at once.

Right now I have these two Regulators:
At tank: red Cavagna-style regulator (appears to be low-pressure ~11" WC, typical single-stage setup)
At cabin: second regulator mounted on exterior wall (appears to be 11" WC / 0.4 PSI second-stage regulator) feeding interior appliances

From what I'm learning, it seems like:
My current setup might be undersized if it's low-pressure the whole way
A lot of people run a 2-stage system (10 PSI at tank → 11" WC at cabin) to make smaller lines work over distance

Questions for others running similar setups:
- What size line are you running from tank to cabin, and over what distance?
- Anyone using 3/4 inch?
- Anyone using anything else but copper?
- Are you running low pressure the whole way, or a 2-stage system?
- If low pressure, what pipe size did you need to support ~200k+ BTU?
- Any real-world issues with 1/2" line at this distance?
- If you switched to 10 PSI, was it worth it vs upsizing pipe?

Trying to avoid re-running the 1/2 inch copper line if possible, but also want to do it right the first time.

Appreciate any real-world setups or lessons learned.  Thanks!!!   [cool]
#2
Referral Links / Modeling with mdkBIM
Last post by Medeek Engineering - Yesterday at 10:26:36 AM
I'm not sure if I want a basement or a second story but this is already bigger than I initially wanted.  The water heater (and possibly furnace) will have to live in the basement or second floor (attic).  The cut out for the stairs isn't final yet since I don't know what the basement depth might be.

The rectangular outside dimensions is 28'x40', which already puts me at 1,120 sqft for the main level.  The bedrooms are quite large, but I prefer larger bedrooms than smaller ones.

Its good for me to use my own plugins once in a while, it helps me find the weak spots or should I say the annoying things about it.  One of those things is the placement of doors along a wall when there are other walls that tee into the wall you are trying to place the door into.  I need to have some mechanism for snapping or measuring from these other walls.  Once can always go back in and adjust or move the doors to fine tune the placement (which is what I had to do) but it does burn too much time.  I guess I learn something new everyday.

Most of my time was actually spent trying to space plan and figure out what made sense, its kind of like playing Tetris.  For this sort of thing a rough layout tool might be useful, but just the native tools at this stage is adequate for most of it.  The biggest aid was using the grid to help me find my way.  Once my initial layout was more or less final, I popped in the walls in less than two minutes. 

Fussing over the windows and doors probably took another hour, and then another hour grabbing fixtures from another model and placing them and then mocking up the kitchen cabinet layout (counters, sink, range, dishwasher and fridge). At this stage I'm not too worried about rendering or making my fixtures all that amazing, so mostly they were added just to make sure my space planning was still logical.

I don't design houses professionally (I've only ever really designed three actual residences and a few detached garages and two commercial buildings) so if this design is a bit of a cludge please forgive my lack of experience and designer feng shui.  Most of my professional work was as an engineer and to be honest that type of work is less about creativity and more about the numbers.  I find this type of work far more challenging and invigorating.





#3
Referral Links / Re: Wall Plugin for SketchUp
Last post by Medeek Engineering - April 08, 2026, 11:31:01 PM
I've been meaning to add in a "Style 6" door hardware option for quite some time.  Basically something for your entrance door, and I haven't had a good option for this until now.  This low poly entrance hardware and deadbolt (handleset) is loosely modeled after the Camelot series by Schlage.  I will include this in the next roll out:

#4
Owner-Builder Projects / Re: 20x30 One Story Southern A...
Last post by rothbard - April 08, 2026, 07:22:02 PM


























Todo: add text story as time allows
#5
Referral Links / Re: Wall Plugin for SketchUp
Last post by Medeek Engineering - April 08, 2026, 07:07:29 AM
Version 4.4.5b - 04.08.2026
- Added a tooltip for the Corner Treatment option into the Global Settings, Draw and Edit Wall Menus.



I didn't realize that the term "California Corner" was not well known in the industry.  To that end I've added a tooltip for "Corner Treatment" which shows a typical (2x6) California Corner and a U-Corner.  Hopefully this further clarifies this parameter for some users who are not familiar with this term. The other corner treatments seem fairly self explanatory.
#6
Owner-Builder Projects / Re: Okanogan 14x24 by a lurker...
Last post by Adam Roby - April 07, 2026, 11:45:49 AM
Quote from: Adam Raabe on March 03, 2026, 07:30:38 PMSee if this link works for you for: https://app.sketchup.com/app

They've really buried the free version (online only, and limited) but it still works for me when I don't need to export DWG's etc.

Thanks for this link, I was able to see projects that I thought lost.  I don't have access to download anything, but its nice to see the old plans.  
#7
Referral Links / Re: Truss Calculators
Last post by Medeek Engineering - April 02, 2026, 01:07:06 PM
Sat down for an interview with Paragon a couple weeks ago:

#8
Referral Links / Re: Wall Plugin for SketchUp
Last post by Medeek Engineering - April 02, 2026, 11:48:36 AM
Version 4.4.4 - 04.02.2026
- Enabled the following methods within the Medeek Wall API: wall_draw_perim
- Enabled "profile cutting" of balusters for vertical and OTP handrails.




I'm not sure why I didn't realize I could do this before but I woke up yesterday and I realized that a simple profile could be revolved into the cutting solid (like putting a piece of square stock on a lathe) and then boolean subtracted from the square baluster as shown to give a typical "turned" baluster.
#9
Referral Links / Re: Truss Calculators
Last post by Medeek Engineering - April 02, 2026, 10:24:26 AM
#10
Referral Links / Re: Truss Calculators
Last post by Medeek Engineering - March 29, 2026, 02:58:33 PM