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Bumping an older thread while researching BTU / W heat requirements. Java do you think the heat loss calculator is accurate? The Webasto 3500 is still roughly twice the BTU's output compared to the calculated requirements. IdaSHO's comment on being able to cook themselves out with 6k btu...

A heat pump is MUC MUCH more efficient than an electrical element heater. Also modern AC and heat pump units that are designed to run natively off DC are again much more efficient. Your 750w is about the right amount of heat...just the wrong way to product it. 750w = approx 2500 btu...

Looks like Wakespeed Offshore is also coming out with a bidirectional buck-booster converter to allow these hybrid systems. https://offgridsoftwaresolutions.com/product/3kw-dc-dc-energy-management-system/?amp More info in their pdf. http://wakespeed.com/2020PricingGuide.pdf Calex also with...

With 575 comments on it good luck sorting through all that the find anything useful.

Yes the charging is the main advantage sought with the hybrid system. Our biggest power draw would be a 48V DC heat pump, and induction cooktop. Smaller draw would be a HRV (heat recovery vent) for the fresh air circulation rather than just the usual pair of roof vent fans. The goal is full...

They really should release the technical details on GVWR. But hey they're featured on Hypebeast so we know they have marketing on lock.

This thing is vaporware and I'll bet it never comes to market. Far too many things working against it. Maybe if it was on a single cab 70 series from an established builder. All they have shown is renderings.

I think you would want something the the capability outlined here. https://www.analog.com/en/analog-dialogue/articles/finally-a-12v-12v-dual-battery-automotive-bidirectional-dc-dc-controller-for-redundancy.html Input range of 2.85V to 80V and output range of 1.3V to 80V. I doubt you'll find...

Use a cornelius ball lock keg instead. Pressurize it with a hand pump or foot pump and have a small hose with nozzle for output.

It's good that ExPo can help create a safe space here for old men to yell at clouds.

Some good info in this thread about the available solar energy in BC/AB/YK snow country in winter. https://expeditionportal.com/forum/threads/overland-explorer-expedition-cabin-on-2020-ford-f350.219160/page-6#post-2871034

How long will you be stationary in the winter? I am working on planning a similar winter primary system. Solar is near useless for a PNW/BC ski weekender rig. Does the 2020 Transit have a smart alternator circuit? I am looking at doing a 48v - 12v hybrid solution in order to be able to...

Another DC based unit. https://www.rigidhvac.com/store/products/151776 Their info says it draws 520 to 860w to a max of 7800btu. Being DC it is also variable and you can turn it down to run at say 3000btu.

Currently researching for a future build an looking at electrical options. My end goal is to go full electric for everything in the camper, the camper will be a hard sided pop-up on a full size domestic truck and capable of primary winter use. The major power draw will be a small heat pump...

Another spot where lithium just makes more sense.

How long do you plan to stay in one place? How many days can you currently last on your current battery bank without recharge? If you are frequently on the move charging off the alternator might negate the need for lots of solar.

No you don't need a condenser as the refrigerant is in it's own closed loop. There is a counter flow heat exchanger tucked in between the compressor and the evaporator on the Mabru units and the sea water runs through this. You just need simple water radiator.

Correct these use sea water. The main power draw on these is the compressor so the video's show what the power consumption would look like for a unit with a modern dc compressor. Marbu has a video of one of their units running a glycol mix through a small car rad to show how it could work in a...

I have been following this build on Casa Trotter in France. https://www.casa-trotter.com/phpBB3/viewtopic.php?f=12&t=12850&sid=8cb9e305e646549ea35c98cd7da15177 It got me thinking of ways to go full electric on a similar sized build. Our local gov recently put out a program on some rebates...

Part of the discussion needs to be are you boondocking or are you constantly moving? If you plan to set up out in a single spot for 2 weeks at a time you're going to need serious solar to go full electric. If you plan to move every 2-3 days you'll be able to recharge off your alternator. This...