Surprising there wasn't better results. I would've bet that would wrork. A big thumbs up for all the work!

Try a softer insulation material , mount the pump outside in a insulated box . Make sure you use thick material. Do not mount it on the case. The rubber you used is to hard and as somakes little difference. Good video though, shame it was not as good as you inticipated it to be.

Thanks for the thought provoking video. I think much of the noise it due to the pipes tapping on the case and other rattles. I have a similar heater and I love it iny small van I got some bitumen car body sound deadening sheet and stuck it to every flat surface I could find within the case. Also wrapped the pump in it like you did. I did away with the rubber bracket and wrapped the pump in strips of Karimat foam and just jammed the encased pump into the space. I put this soft neoprene like foam sheet in all places where pipes touched the case. It's a lot quieter and the ticking is a soft dull tone. Acceptable but I'm still looking for ideas. Potting the pump in silicone is my next idea but I'm looking for examples first. Nice video thank you for your efforts.

I have been meaning to pick up some duct seal, the stuff like heavy duty modeling clay. I think embedding the pump in a pound of this would provide the mass and absorbtion to quiet the pump.

Great idea using the box but if you had used acoustic wadding or quilting rather than hard rubber it would improve the sound reduction hugely. In the example here the pump sound transfers easily through the rubber to the outside box and onto the outer heater casing so not much if any change. Enjoyed the video and thanks for posting

I did this using roof and gutter neutral cure silicone. It was a layer about and inch thick around the pump body, once cured clamped in a box similar to yours and its barely audible. Problem solved!

Just thought I'd mention that the muffler should be mounted vertical with the drain hole facing down and the lowest point of the exhaust system

My Dad had some success quietening the noisy pump by wrapping it in neoprene foam, then dangling it from small rubber bungies which helped isolate it from the heater body, I mean it still clicks but not much of the sound makes it from the pump to the rest of the heater. The weird thing is, I've got a Japanese paraffin heater which uses a similar solenoid dosing pump, but for some reason that makes no discernible noise at all.

The silencer has a hole in it to let out condensation so should be rotated 90 deg to let tit drain. It will also let out exhaust gasses. Therefore, place the silencer outside and live longer

you are on to something with the aluminium case that's perfect!!!

Try closed self foam insulation like you use in HVAC. It’s black in color and you can get it in different sizes. You should be able to simply wrap the insulation around it and zip tie it to keep it closed all done, faster and cheaper.

What I did was bought a silicone mold making kit. One that xxx toys could be made of soft. An taped the hose ends. And the plug part. An just got a Tupperware container. And encapsulated the pump. Than with a razor blade. Extracted to my tape areas to expose the plug an each hose end. Plugged it up to the hoses an plug. An just stuck it in the heater an closed it up. I didn’t worry much about the pump getting to warm due to its electrical workings or what not. Due to when it’s used it’s cold in general. An never has an issue. So it’s kinda floating in its lil spot inside the heater inside of a soft silicone block

Now it sounds like James Bond's PPK in Dr. No! 😂 Great experiment. Thank you for sharing.

You need rubber mounts from the box to the sheet metal. the sound is amplified by the sheet metal try not to mount the box with bolts just hanging and check for noise level.

To start, buy an upgraded fuel line kit, run the pump in a vertical orientation. As long as the pump no matter what the insulation is affixed to a solid percussive object you will hear it. The rest is easy.

Maybe cork would work , but seen many try without success . The craftsmanship was 10outa10 👍

From what I do know about soundproofing. You may have two issues . One is the rubber you used is probably still allowing the vibration from the injection pump transfer to the outer metal case . The other issue is the plastic plug is touching the plastic housing when you put the lid on , that allows the vibration to transfer to the plastic box . Also same with the hose ends . Might I suggest trying to use sound dampening materials for example put it in a box that is twice the size of the plastic box and use cardboard egg cartons on the inside walls of the box then find a block of soft foam to mount it too inside the box , run the hoses through that box without touching the sides of the outer box but through some soft foam . It won’t fit inside the metal container but it should still be as quite or better .

Try a Decibel meter at a set distance before and after. Try encasing the pump in a softer medium ie. foam rubber. Bear in mind any hard surface in contact with the sound source will transmit sound. interesting video though.

The back panel of the case that the pump is bolted to is vibrating causing the noise. My pump is attached to the frame of my ford e250 with the rubber holder. She's quiet as a mouse.

One of the reasons I do not go for the all-in-ones because you can get rid of the pump noise place it in a better case with extra padding.

I wonder if you might get a better effect by building the pump into the box and filling the cavity with spray foam?

Love your work on making this unit quieter, been wearing ear plugs! I see wehave the same unit. Any tips on how to pair it with the remote? Finding the included instructions a tad confusing!

Good video btw 😊

13:38 Pump still pounds like E. A. Poe's "Telltale Heart." I wonder if some of the sound comes from the plastic tube.

wonder if filling the box with expanding foam would help, its what thieves use to do with alarm boxes

The best way to get over this noise is freezing cold.

my theory , the softer the materials you use to wrap the pump it dampens the clicks (neoprene) and a hollow or light hollow or less solid materials for the box (foam).

it's knocking like a bailiff😮

Would expanding form work?🤔

I just purchsed a 5kw heater, it looks very near the same. Mine is much more quiet!

You would be beter filling the box with expanding foam (maybe) give it a go and make another video please

i dont understand why people dont materials dedicated to sound deadening, such as foam. the hard object will vibrate the sound you need to dampen it

😂😂 Its not much difference, fair play for trying. There an absolute nightmare 😫 specially when trying to sleep in your van. Like Chinese torture 😂

Your exhaust extension may not be safe. I don't think you're supposed to extend the small pipe so far. It would probably be better to increase the diameter to run farther than the stock exhaust pipe length.

Buy an Eberspacher pump, in the blurb for our heater it describes the pump as “near silent” ours is mounted underneath the van and I can honestly say I’ve never heard the pump either Inside or outside the van. Hope this helps someone.

fill the box with expanding foam

Just tell your mates postman Gerry is visiting the lady of the house again

i watched that whole video to hear some crazy thumping noise in the end. jesus christ

Reminds me of an Edgar Allen Poe poem.

Encase it in silicon sealer and use silicon to stick the box to the heater. But be careful with the electrical contacts as silicon setting gives off fumes which cause steel to rust so I would wrap the plug with insulation tape. Or encase the pump in black dense foam two halves shaped to fit the pump snugly

Nice try though, well done. One day someone will have a solution and we'll all be happy... Evolution of the Chinese heaters haha.. Thanks for the video

How about this.... Yongle Elliott ET950 Noise Reducing Cancelling, Cloth Adhesive Friction, Wire Harness Fleece Tape, High Temperature 220F, 3/4" X 25M FS

Try high density foam instead of hard rubber

Have you noticed it getting.louder when the fuel gets below quarter full

Acoustic foam and rubber net to hang the pump in and noise tik is gone

Should have used foam or styrene instead of the rubber.

Or pipe lagging and sound deadening pads ☺

What about using an off cut of sound deadening foam wrapped round it then stick it in the box 🤷🏻‍♂️

Watch this video and notice where the fuel pump is installed (outside of the case) and an improvement on fuel lines. In this video you can't hear the pump at all. kzfaq.info/get/bejne/nbR7h72g2LKalGw.html

Hey mark some one knocking at your door

sink the whole pump under silicone glue

Didn't work

Sorry Mark, but I don't think it is any quieter, but still enjoyed the video

Tell Tale Heart, by Poe

Fill the box with sillicone

Exhaust is the wrong way round.. Breather hole should be at the bottom

Fill it up with sand.

This video may be of interest to you, i've seen many suspend pumps like this using strong elastic and it does make quite a difference, the only problem is you'll have to mount the pump outside the case. hope this helps in some way kzfaq.info/get/bejne/qLZjebKB1tqtfps.html

the only way to beat this is to hang the pump from a frame on fishing braid. may I add that the exhaust recomendations are no longer than 2 meters in length. and the green fuel line puts extra strain on ther pump as it gives and expands each time the pump pumps making the fuel injection less effective, almost everyone replaces it with the hard 2mm core nylon fuel line that doesnt expand as the pump pumps. There are also no fuel line clips on the fuel hose another saftey issue to note. the green fuel line has been known to perish and split esspecially around the exhaust outlet, this could cause a fire. you will also need a fuel filter installed before the pump, most heaters come with one. as you have it set up I honestly wouldnt put it a family members house without at the very mimimum doing these saftey upgrades. and please make sure you install a carbon monoxide alarm. some titanium exhaust wrap double layered may also be advantageous to keep the hot exhaust from damaging the fuel line or to protect the hands of little ones if they should grab it? it is available on Amazon.co.uk or ebay. you can also searh either site for the Diesel Heater fuel line upgrade kit it costs about £12.00

A word of warning you have fitted your exhaust muffler indoors, these are poorly assembled and leak carbon monoxide fumes plus there is a moisture drain hole.

Yeah, didn't work.

pretty failed

Sorry but I’d call that a 100% fail.

To silence the pump suspend in a plywood box lined with roofers lead sheet = Total silence

Set the pump at 90 degrees with outlet pointed up.

I would call that a fail!

its worse bro sorry

haha, you made it worse

Nice try.

Fail, end of