Vilpra Sauna VILPRA WOOD User manual

































































VILPRAWOOD
–
WOODHEATERMANUAL


Marketing:
SpaDealers






Korsnäs‐FINLAND
+358‐(0)10‐2395600

[email protected]
www.spadealers.eu

Manufacturer
UAB”VILPROSPRAMONÉ”,Lithuania

WARNING

Heatermustbeundersupervisionwhenitisinuse
Readthetechnicaldescriptionsbeforeinstallingtheheater
Readthemanualbeforestartingtheheater
Improperuseoftheheatercanbedangerous
Theheaterschimneypipesandfiredoorcanbecomeveryhotduringuse.
Keepchildrenawayfromtheheater.
Neverusedampwoodasitdrasticallyreducesefficiency.
Donotdrainthehottubandheaterbeforeallthewoodhasburnedoutand
theembershavefaded.

VilpraWood(WBR)
VilpraWoodisfiredwithwoodandconnectedtoahottubonthe
outside.Fortheheaterchimneypipes(100cm)andchimneytopfor
effectiveremovalofsparkscanbeboughtseparately.Needvaries
basedonlocation.

Wood‐burningwaterheater

Thisisaprecision‐builtwaterheater,especiallydesignedforHot
Tubs.Waterisself‐circulatingusingthe"thermosiphon"principle.
Hotwaterrisesandcreateslowpressure,whichsucksthewaterfrom
below.Thiseliminatestheneedforacirculationpumpandelectricity,
makingitpossibletoheatthewaterwiththeheaterplaced
externally.Onegreatadvantageisthattherewillbemorespacein
thetub,makingitpossibletochooseasmallermodel.

Boththeouterstovebodyandfireboxaremadeofstainlesssteel.
Theheatermustbedrainedviathedrainholeaftereveryuse.

Theheatfromthefireisefficientlytransferredtothewaterthroughauniquesophisticatedconstruction,makingthe
entirefireboxaheat‐transferringsurface.The
totalheatingefficiencyis15kW.

































Togetagoodenoughwatercirculationgoingtheheatermustbeplacedatleast15cmlowerthanthefoundationthe
hottubstandson.Thisonlyappliesundertheconditionthatthefollowinginstructionsarefollowed.



WBRCHS
CHDW
15cm

INSTALLINGTHEWOODHEATER
WARNING!Readthelastpagebeforebeginninginstallation.

Installation
VilpraWoodisconnectedtoahottub(smallestdiameter150cm)withaconnectionkit(WBRUP,WBRLP)includedina
completehottubpackage.Itisnotincludedwhenorderingonlytheheaterbutcanbeorderedseparatelyasan
accessory,thekitconsistsof50mmPBCtubing,flexiblerubberhosesincludingclamps,oneconnectionforthesideof
thehottubandone90°forthebase.Seepicuturesonpreviouspage.
1. Placetheheateronanevenwood,brickorconcretesurface.Theheatershouldbeplacedatleast15cmlowerthan
theHotTubtoensurethattheupperpipeisleaningupwards.Thisisimportantforcirculationandtoensurethat
thewaterdrainsoutoftheheaterduringcoldweather.
2. Drilla60mmholefortheupperconnectionpipe(outflow)inthesideoftheHotTub,190mmabovethebase.Drill
asimilarholeatthebaseontheoppositesideofthehotTubfortheheaterinletpipe.
3. Theangledconnection,includingpipe,shouldbescrewedtightlytothesideandtheotherconnectiontothebase.
Usesiliconeonthethreadstoavoidleakagetohappen.
4. Connecttheblackrubberpipestotheheaterandpipes.Itwillbeeasiertoconnectthepipesiftheyareoiledwith
cookingoil.Tightenusingtheincludedhoseclamps.

ChimneyPipeholderFastenthechimneyfitting.Thenassemblethechimneypipeandputin
place.NOTE!Turntheseamonthepipebackwards.Seepicturesonlastpage.

OperationTheVilpraWoodheateroperatesasaconventionalwoodstove,achievingthefastest
heatingratefromdrywood.Thefireboxis46cmlongand36cmindiameter.Themostefficient
heatingcomesfromusingdrywood,40‐43cmlongchoppedintoathicknessof4X4cm.Oneload
bsurnsforapproximatelyat30min.TheVilpraWoodheaterhasahighandlow‐speeddraftfor
controllingtheheatingrate.It’srunwiththedraftwideopenforfastheating,andsloweddowntomaintain
temperatureoncethewaterishot.Seepicturesonlastpage.

DesignThedesignoftheheaterismadesothatitwillleanslightlydownwardsinthefrontwhenitstandsonastable
andevenbase.Neverputtheheaterinsandoranyothertypeofsoftfoundationsasitwillcauseanairpocketthat
preventspropercirculationandwilldamagetheheater.Iftheheaterisinstalledwithapump(forinstanceforapool)
theconnectionmustbeoutfittedwithanadjustablevalveonthesuctionsidethatenablesyoutoregulatethewater
flowandpressure.Toohighwaterflowandpressurecandamagetheheater.Adjustthevalvesothatthehotwater
comingfromtheheaterstaysaround50‐60degreesCelsius.

Features
Stovebodyofstainlesssteel
Doorsofspecialsteel
ConnectionpartstotheHotTub
Largefireplace
Dischargingventforthewaterinorderto
protecttheheaterfromfrost

Specifications
43cm(height)x56cm(length)x41cm(width)
Weight:20kg
Firebox:43x35x23cm
Heatexchangersurface:0.85m²

Heating
Theheatingeffectvariesaccordingtothequalityofthewoodandhowoftenyouputinmorewood.Theapproximate
heatingeffectfortheVilpraWoodstoveis14.9kW.

ModelWateramount Startingtemperature Approximateheatingtimeto37°C
HT150 1200L 10°C About3hours


WINTERUSE
Ifthereisariskoffreezingdamagethentheheatermustbedrainedofwaterafteruse.Selfcirculationwillceasewhen
thewoodhasburntoutandthesmallamountofwaterremainingintheheatercaneasilyfreezeandcausedamageto
theheater.Tokeepthewaterinthehottubthereisarubberplugcompletewithaccessories.Seeimagesbelow.You
canalsosupplythepipeswithvalvesthatcanbeopenedandcloses.Dependingonhowthisisarrangeditcanbecome
necessarytoinsulatethepipesandvalvesforthebath.Ifelectricityisavailablethenafreezingguardcanbeinstalledin
theheatersfireboxtoavoidfreezingdamageswhenit’snotinuse.Upperandlowerconnectionpipesmustthenbe
insulated.




































HINT!Thewoodheaterhasalargeexternalsurfacethatisindirectcontactwithairandthereforeitisrecommendable
toinsulatetheexteriorwith,e.g.somekindof“flexibleinsulationmaterial”whichhelpstoshortenthewarmingup
phaseconsiderably.

WARNING!
Thewhite“distributorpipes”hastobeconnectedwhentheheaterisinuse.
Don’tputfingersortoesinthe“distributorpipe”.
Theheatermaynotbeusedtillthewaterlevelrisesabovethehighestpipe.
Getusedtoemptyalwaystheheaterwhenitwon'tbeusedespeciallywhenthe
temperaturesinksbelow0.Youcanalsoraisethefrontoftheheatertodraintheverylastofthewater.
Whenusingsaltwatertheheatershouldalwaysberinsedwithfreshwateraftereachuse.
Thesameappliesforchlorinatedwaterorsomethingsimilarwhenchemicalsareused.
WBRUP
WBRUP
WBRD Lower connection 50mm for drainage including
gate valve and clamps.
Acessory


ASSEMBLECORRECTLYortheheatercanenduplikethis.Theheaterhaveherebeeninthesameheightasthebath
whichcauseddisruptionsinthewatercirculationandtheheaterwasdestroyed.Seepage2formoreinformation.Note!
Thisisanoldermodel,butwiththesamefunction.

















NOTE!Completelyopenairdraftsettingasshowninpicture4givesanevenbetterdraft,butatthesametimehigher
smoketemperatures.

Removelowerdraftcompletelywhenheaterisinuse,seepicture9.





Chimney Pipe Holder
1 2 3
4 5 6
7 8 9


Properburning

Togetasrapidaheatingofthebathtemperatureas
possible,itisimportanttofollowsomebasic
principles.

1. Usedrywood,preferablybelow10%moisture,
splitintosmallerparts.Highhumidityreducesthe
effectivenessconsiderablybecauseitcreates
depositsonthestove'sheattransfersurface.Also
avoidAlderandespeciallyifit’swet.Wet
firewoodcanalsoleadtosteamdevelopment
whichcanbemistakenforleakage.

2. Thewoodthatissplitshouldpreferablybe40‐42
cmlongtocoveralloftheheat‐carryingsurface.

3. Openthedraftinthefueldoortothemaxand
removelowerdraftcompletelywhenthestoveis
inuse.Startbyfillingtheheateronlyhalffullor
less,togetefficientheatingfromthestart.

4. Filltheheaterin20‐30minuteintervals.

5. Observehowthegrateisplacedsoit’snotswung
thewrongway.Properlyplaceditproducesless
ashwhichcanaffectthedraft.

Iftheseconditionsaremet,thentheheatingrateto
bearound12°perhourto1000litersofwater.Due
toincorrectusage,theheatingtimemaybe
extendedbyseveralhours.

PS!Itisalsopossibletoincreasethedraftby
openingtabsonthechimneyholder.See
instructions,lastpage.

TIP!Theheaterhasalargeexteriorsurfacethat’sin
directcontactwiththeair,soit’sagoodideato
insulatetheoutsidewith"flexibleinsulation"orput
theheaterinabox.Warm‐uptimeinthewintercan
besignificantlyreduced.




USEDRYWOOD!

OurVilpraheaterisoptimizedtoprovideagoodenergyyieldwhendrywoodisusedasfuel.
Thiswillalsoreducefuelconsumption.Thestovecannotbecomparedwithstoveswherethe
focusisongreateffectwithoutconsideringefficiency.FortheVilprawoodburnertowork
well,itrequiresthewoodtobedry.Thisismentionedinthemanual.

Firewoodcontainingmuchmoisturecausespoordraftandcombustion.Moisturecanalso
begintoleakoutinfrontofthestove.Evenasingleheatingwithsuchwoodcanproducea
coatingontheinnersurface,extendingtheheatingtime.Ifthesurfaceisnotcleaned,the
coatingwillbuildupandfurtherreduceefficiencyandprolongtheheatingtimesignificantly.
Thepicturesshowwhatitcanstarttolooklike.

Examplesofdepositscausedbysour/wetwood.Useofimproperfirewoodcaneasilydouble
theheatingtime,orevenmore.


 




