Rinnai Infinity 26 Gas Water Heater

Well for today’s  equipment autopsy we have a Renault  Infiniti continuous water heater it’s a  gas heater and it doesn’t work it was  donated by a friend who got it off of  friends just as junk I also got this  neat little oil cooler with the screw on  attachments the oil filter housing it’s  kind of neat don’t know what kind of car  it goes on but that’s worth keeping this  thing here I just want to strip it down  get it out of here  been raining continuously for the last  two days so I have another chance to  move big stuff outside like the engines  and just clean up in here I really got  to start pulling big things out and then  get into cleaning because otherwise  you’re just tripping over everything  anyone who’s got a hobby shop knows what  that’s like so I’m going to pull this  thing apart and you can state it and  watch for the experience and quite  interesting inside I think this one will  have a stainless steel heat exchanger a  lot of them do or if we’re lucky it  might have a copper heat exchanger  they’re worth a bit a scrap I think it’s  leaking I don’t know for sure.

I think it  actually leaks or it’s got an electronic  problem either way I just want the  circulation pump out of it above  everything  some of them do circulate continuous  water for instant hot water okay there’s  the data on this water heater for those  of you who are interested in that sort  of thing yeah forty four point five  kilowatts it’s pretty impressive cause  plenty of warnings there’s a gas  appliance so it’s going to be approved  and warranted you can get lpg kits for  these but little bit hard to find unless  you’re buying brand new from Rene in  which case probably paying for small  fortune it’s got the jet sizes there  though you can always plug the Jets up  with solder and then read drill them  it’s not hard to do  and of course everyone is crazy about  energy ratings although this one’s faded  out of existence now it’s a reason why a  lot of people buy new appliances and  throw the old one in the bin is because  it has a lower energy rating like a  fridge that’s down here go off and get  thrown in the bin while it’s perfectly  good for a fridge it’s up here in the  middle big waste of a machine a lot of  expense making a new one and  reprocessing but that’s what a lot of  people do so on with the autopsy oh wow  does this thing have a lot of crap in it  for a water heater that’s what makes  efficiency.

These days making all this  electronic crap I convert a microwaves  and inverter air conditioners there  might be power efficient but God knows  what kind of consumables they use making  them I see a big printed circuit board  with a rack of dip switches down there  mains input which is currently switched  off at the panel but neutral still  active and we are going to put power to  it and see what it does it actually has  a copper heat exchanger and one of the  guys who works for Renault when I was  working at the scrap yard he would bring  in the poll back of his van full of  these coils that had failed prematurely  because they made out really paper-thin  copper they just seem to have a horrible  failure rate probably why this one was  canned as well there’s a lot of signs of  water getting through the bottom of the  cabinet there’s a lot of corrosion an  ongoing problem up there apparently  these do have a pretty horrific failure  rate don’t worry I’m not getting any  kickbacks from Reno for doing this video  they probably won’t like me but this is  quite a interesting unit I was wondering  what they look like.

I’ve walked past  them at the scrapyard before we then  they complete with the cover on just  thing it’s just a burn a rack with a  valve on it and a copper heat exchanger  but this is incredible someone did say  they had headaches they had our  circulation pumps in them which is I  think that thing down there and I guess  they’re right there’s two water passages  aluminium manifold and then it’s gone up  to this helix  quite interesting and obviously a  combustion blower in there that’s a  centrifugal blower but sir turns and  power on well as I say in the movies  fire in the hole  your valve or something  hmm sound like servo motors and valves  and it’s not doing anything both waiting  waiting for a gas pressure signal which  is that’s gas input oh I see that’s a  gas manifold another water manifold  silly me  yeah it’s probably waiting for a gas  pressure signal like something there  that looks like not so much a solenoid  but more like a pressure switch actually  no sorry it is a solenoid I’m having a  great night tonight yeah that’s not a  solid that’s not a pressure switch  that’s a solenoid hmm  I’m having to get this thing to do  something exciting well I guess I can’t  without fire gas now let’s just rip this  damn thing apart I don’t have time for  the fiddly mucking around stuff.

I know  it’s busted oh I said it doesn’t work so  I’m going to take his word for it and  I’m not really going to bother using it  for something important they’re not  reliable enough I’m starting to get into  the thing not easy is the blower which  is packed up full of dead moths yeah  they’re there it’s about six dead moths  jammed inside it so that’s why we only  got half the airflow it needs and  they’re up inside the burner box hmm  cut that also going to put obscene  amounts of power through it it’s a 40 I  think it’s 48 volts induction motor or  something like that probably not  actually it’s got so many Y’s on it it  either way that thing will burn some of  these silly little coils  it’s just retarded amount of complex  stuff for a water heater all you need  for a water heater is a couple of  thermistors or like wax stats a burner  rack and the heat exchanger preferably  made our thick heavy copper none of this  paper-thin stuff that’s all you need for  a heater mount it outside okay if you  want to put it inside you do need a  combustion blower but that’s about it  what’s with all this electronic shit and  sensors and things how’s that efficient  I mean this super efficient till they  break and you have to buy a new one  I don’t know how old this thing is but  it’s not very old it’s just so wasteful.

I mean not dismantled quite a few  instant and I suppose they call them  instant water heaters particularly the  old ones the ones made by Yonkers and  Bosch they are really simple they have a  solid brass valve block a burner rack  and a copper heat exchanger that’s it  there’s none of this stuff there’s no  fancy vowels or solenoids maybe one  solenoid that’s about it no they’re  misters like that one there came off the  top of this loop there’s another one  there was another sensor there which is  down the bottom now there’s about four  sensors on this copper part there’s a  few on this burner box there’s four or  five or so on the water outlet yeah  that’s the outlet there says it semester  on that there’s some kind of sender on  there with four wires going to it  there’s wires going into a block down  there why why do water heaters have to  be so complex  this isn’t saving energy this is wasting  energy manufacturing all this shit I  like high technology but there’s some  places where it just doesn’t belong and  if you build water heaters like big  chunky bricks like they used to be they  can last until forty years down the  track when they eventually do corrode  through or it just gets so hard to buy  parts that it’s not worth replacing it  like the old brightest Buffalo gas  heaters though lasted my mum’s won’t  actually lasted 22 years before she  replaced it with a Braemar as an eco  star heater and that brie mark that  Braemar eco star is not going to last as  long as that 23 year old brightest  buffalo it’s not built as well sure it’s  efficient.

Dave Steward

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