Nice, realistic. It's great you showed the problem and failures you came across. It's a good learning.

Nice video and explanation! What about Butane? For refilling lighters and small torches?

I congratulate you on your inventiveness, if you want a certified and ready-to-use heat pump, remember us!

Why did you have 4 heat exchangers?

Can someone explain how refrigerants are eating up the ozone layer like what is actually taking place? And when this burnt to a crisp hole that’s in the atmosphere that people are creating by spewing r22, 12, farting out their but what happens when all this Freon that goes out the atmosphere asking for a friend. I don’t just appeal to authority. Why don’t we just use ammonia exclusively if that’s the case?

Awsome

I just came across this video kzbin.info/www/bejne/poe0l5tpobaYmZY have you seen such digging technique? Also is there any estimate for the next video on this topic? :)

CHRONIUM NEVER GO FARTHER THAN THE FILTER IF THERE IS ANY, SO THERE IS NO PROBLEM WITH THE STAINLESS STEEL ELECTRODES, I USE THEM FOR MANY YEARS AND NEVER HAD ANY ISSUE, I BREATED AND MAKE HYDROGEN RICH WATER.

I'm kinda confused won't using arduino components make this way easier😅

Great!

I am interested in making my own motor fuel (ethanol) and I have been wondering if a heat pump could move heat from the condenser to the evaporator in the still. Is this practical ?

I wonder if a hydrogen fuel would pop louder.

You really mean diy

Late to the party, but inhalation hazard is just as serious as skin contact ;)

Great video, very tidy heat pump. I built a water source heat pump too, it modulates like you plan to. I used it all last winter. I will add an air source evaporator for when the air is warmer. Like you, I use fuel grade propane. Just don’t invert the cylinder to get liquid....I found out the hard way

You’re surely located in the above sealevel part of the Netherlands 😂 as there seems to be no groundwater seeping in. Great idea though to keep the wife happy 😃

With UN1965, I think you have barbecue-grade "propane" hydrocarbon mix, and refrigerant grade R290 would be UN1978. You might think about setting up a gas purification process? On the other hand, gefeliciteerd on the working heat pump! This is a lot more sophisticated than what I would design.

Not simply outdoors...

For a hotter country (30-40C during the day), can a similar design not be used to boil water and get the steam to drive a turbine/generator combo to generate electricity, before dumping the same water back into the panel(s) through a closed loop? If so, how many Watts do you expect that to generate? Or is photovoltaic better and cheaper?

Sehr cool.

I didn't quite understand why you had to have four Heat exchangers I would think it could be done with two. Couldn't you put valves at the inlet of the cold and hot to redirect which heater changer the water went to for the heater versus Cooler

I subscribed at "HOME MADE HEART PUMP" haven't even made it 3 seconds into the video

i demand that all temperature be declared in reaumur! how DARE you not convert for OUR convenience! lol...

Quite the dichotomy of smarts in the content, and then the stupid Fahrenheit comments. "Celsius means nothing to me. So I do not punish myself with it." I LOVE the Imperial system. Without question, this is for no other reason than because I grew up with it, and now I am comfortable with it, and I am sentimental towards it. If I was a betting man, I'd bet that YOU grew up with the Metric system! Outside of that, this is a cool (and warm!) project. I will point out that, rather than an app, all you need to know to calculate evaporator superheat are: Evaporator outlet pressure, Evaporator outlet temperature, and the temperature / pressure curve for R290 (propane). You can even get gauges that display pressure and the corresponding saturated temperature for particular refrigerants. That makes it super easy then. I highly recommend the thermostatic expansion valve. An adjustable one, of course.

Hello, thank you very much for the great video. I would like to use a conventional, powerful inverter air conditioner from Midea for heating via heat exchanger as in the video. I want to heat the water in the heater. Everything works, but I don't have a control for the Midea outdoor unit, which simulates and controls the indoor unit. Does anyone know a device that can be purchased? What protocols does Midea use on the BUS cable? I am grateful for any hint.

You should consider that the restriction with the capilar tube wastes energy and might be replaced by a small pump converter tu a turbine ❤ maybe running the air fan

I'm really impressed that you used propane for the refrigerant gas. We just had a reverse cycle air conditioner taken out while doing some building renovations. The unit previously had R32 (which was removed and destroyed correctly) & our refrigeration mechanic put a propane mix in.

you shouldnt need any cooling on the compressor, you want just enough excess refrigerant that some cool gas makes it back to the compressor to cool it without enough excess to have a hydraulic lock up

As a novice in this field I congratulate you on your build. This video confirms my opinion that to install a heat-pump into my home will provide a nightmare of complexity that will require endless expensive maintenance over the years. Whereas I can personally trouble-shoot my current Central heating system, there is no way i could deal with the endless pipes, valves and sensors depicted here. So, apart from the known inadequacy of heat-pump home heating I think this system is far to complex to be practical as a reliable and cost effective installation in my abode.

not all the heat on the hot side is "usable", which most people neglect to take into account.

why no changeover valve for "the avoid freeze up" system? like the thing used in the defrost cycle on air to air pumps...

I'm a refrigeration engineer in Ireland. R22 has a GWP(global warming potential ) of 1810 Kg of CO2 per Kg of gas. Wheras R290 (propane) has a GWP of 3 and no ozone depleting potential. I would recommend using refrigeration grade R290 as it is pure and will not cause the oil to become acidic , which will cause leaks and attack the electrical windings in the compressor. Your explanation of superheat was a little confusing. Superheat is best described as amount by which the temperature of the gas is above the evaporating temperature of the gas at a particular pressure. If the gas leaving the evaporator is at 1.0 Bar , it's evaporating temperature is approximately -10.0°C and if the temperature of the gas at the same position is measured at +2.0°C , then the superheat is 12°C . Ideal superheat is generally accepted as being between 4°C and 12°C , but with propane it's 8-12 °C as it's slow to evaporate.

5:54 did you say imperial system or inferiorial system? 😂

I recommend to insulate all the bare pipes of your central heating - and when finished, also in the heatpump.

kudos for daring to experiment with heatpumps, and being responsible enough to do it with propane to minimise environmental risk. Just please be sure to work well away from occupied dwellings.

Any update? :)

The impact of R-22 as a refrigerant, as well as R-12, on the ozone layer is negligible. The problem is rooted in R-12's low price and overproduction, which resulted in its usage as a propellant in all possible cases with disposable pressurized cans (deodorants, spray paints, dusters, air fresheners, etc.).

this thing blow my mind.

nice build

I have a home made heat pump that heats my house - ground source - hot water - underfloor heating Its a LOT less complex than that!! Compressor, Two heat exchangers and the evaporator

i made a HP with an old window ac. i just turned it around so the evaporator is outside and the condenser is inside.

can you please go into more detail on how you plumb the seperate chambers for hydrogen and oxygen seperation? how do they seperate and find their different tubes?

Two thin alu sheets. Gently bent edges and solder both sheets around perimeter leaving a void in the middle. Solder pipes in opposite corners. Paint one side matt black. Plug in hoses. Fill internal cavity with water/antifreeze. Instal in EPS insulated box. Use plastic (Polythene - same as for greenhouse) sheet to cover front... you can use two layers with cavity for better insulation. This could also work with alu-plastic composite, Alu sheet at the front and plastic backing. But in my area alu sheet comes cheaper than whatever plastic. Steel is another alternative, but increased weight and corrosion must be addressed. Much less labour. Much cheaper. Greater heat exchange area. But it will be heavier.

Nice desing. Bravo ! :)

When doing your 3 passes through the grove making clamp instead of lifting it out after each pass and feeding it through for the second and third just feed it back the opposite way then back again. Staying within the runners for all 3 passes

Great channel with some super interesting projects!..👍 if you haven't thought of a use for the bunker/basement perhaps you could put a large water tank (or a couple of IBC tanks) down there to store hot/warm water as a seasonal buffer!? 🤣😂 Also, I've been hunting for anyone who has tried to connect a wind turbine to a heat pump for hot water... not via electric but direct wind powered compressor; it might not have been done because it is just not practical, but linking a wind turbine to a heat storage/buffer tank could then be used to feed into a second heat pump which could be used on demand rather than ground water.🤔

I knew I heard that sound before! people here put those vertical in vineyards to protect against hail. kinda works.

Use 316L. Cleanse and catalyze by running. Add new water. Several times

Does this compressor have oil? It can eplode?

How real is your demo