24
“Takes a beating, and keeps on heating”
“Takes a beating, and keeps on heating”
Don’t be the one that gets burned.
When it comes to THAW, CURE, HEAT, nobody does it betterthan Thawzall. We don’t take that statement lightly. We’veinvested thousands of hours innovating and developing ourexclusive line of HEATZONE® equipment that soaks your winterconstruction project with an even, uniform envelope of heat.
Other manufacturers simplyaddress your needs with the “burnttoast” theory, heat that is poorlycontrolled and unevenlydistributed.
Thawzall’s HEATZONE®
technology for the winterconstruction trade is aninnovative, patented(#5,964,402), portable heat distributionsystem similar to in-floor heat zonesinstalled in homesand buildings.
Temperatures across the area tobe heated are accuratelycontrolled and heat isuniformly distributed bycirculating heated fluidthrough hoseconnected to Thawzall’s patented heatdistribution system. You can’t make toast orTHAW-CURE-HEAT any better than that.
Need another reason to specify innovative HEATZONE®
technology? HEATZONE’s even heat technology consumes 24gallons LESS fuel per day than a comparable competitor* whilecompleting the same THAW-CURE job in less total time. Andnow you know why - even heat results in desirable outcomes.
Introducing the HEATZONE® H Series...
Portable Hydronic Heating Systems
The idea of a portable hydronic heating system
was conceived by and named Thawzall in a
workshop in Alexandria, Minnesota, in 1996 by
a Norwegian plumber who had a contractor friend that
was in trouble and behind schedule when the winter
freeze up caught up with him.
This plumber developed his version of a portable
hydronic heat system using a low pressure closed-loop
system and the first of hundreds to come was produced
that winter. Because he felt that he had a better idea
than a competitor’s product, he applied for and received
patent #5,964,402 on his portable hydronic heater in
1999 for a manifold fluid distribution system that
featured quick disconnects and multiple heat zones.
New owners purchased Thawzall in 2007 after learning
that opportunity existed to improve the product line.
The latest model Thawzall machines now proudly carry
the HeatZone® brand. HeatZone® – even heat for
desirable outcomes.
1-888-757-3545
Ph: 320-634-4455 • Fax: 320-634-4563
History of Thawzall™
TABLE OF CONTENTS
SERIES PRODUCT ENHANCEMENTS 5
HEATZONE® H150 6-7
HEATZONE® H250SL (SINGLE LEVER) 8-9
EXTREME HEAT 10-11
COLD WEATHER CONCRETE 12
GENERATORS 13
FANS AND UNIT HEATERS 14-15
ACCESSORIES 16-17
REPLACEMENT PARTS 17-18
HEATZONE® TECHNOLOGY 19-21
• HEAT 19
• THAW 19
• CURE 20-21
• FROST PREVENTION 21
NOTES 22
4
5
HEATZONE® SERIESProduct Enhancements
QUALITY IMPROVEMENTS• Steel Manifold and Non-copper Piping
- improved durability & repairability.
• DOT Certified LED Lights- operational reliability.
• Industrial Door Struts- secure doors open or closed.
• Coupler Cleaning Station- reduce contamination.
CONTROL SYSTEM IMPROVEMENTS• Centralized controls
- convenience of startup, operation & monitoring.
• Rooftop Mounted Message Beacon- visual assurance of proper operation.
• Digital Display of HeatZone® return temps- monitor critical CURE temps.
• Hour Meter - keep track of rental hours.
PERFORMANCE IMPROVEMENTS• Improved Heat Distribution
- faster THAW, more uniform CURE.
• Improved Circulation Performance- greater head and GPM flow.
• Full Strength HTF (Heat Transfer Fluid)- Pumpable down to -80°F (-62°C).
• Simplified Configuration- easy to operate and understand.
• New SL Technology- makes concrete curing simple.
OPERATIONAL IMPROVEMENTS• Automatic Fuel Bleed System - no bleeding required.
• Fork Picks for H150 & H250 - ease of placement on job site.
• Back Flow Check Valve - eliminate HTF fill tank overflow.
• Security Housing for Temp Control - prevents unauthorized tampering.
• Furnace Troubleshooting Placard - reduces non-revenue service calls.• Breakaway Kit
- complies with state & federal towing safety regulations.
6
H150
Big HEAT in a small package!Thawzall's patented HEATZONE® technology THAW's faster,CURE's concrete more uniformly and provides dry, flameless HEAT towinter construction jobs. Model H150 is well suited for small to mediumsize jobs. Use as emergency backup for installed heating system.
PERFORMANCE
THAW frozen ground sq ft 1,200-2,400sq m 110-220
CURE concrete sq ft 2,400sq m 220
with accessories sq ft 6,000 maxsq m 550 max
FROST prevention sq ft 2,400sq m 220
with accessories sq ft 10,800 maxsq m 1,000 max
HEAT buildings cu ft 210,000cu m 5,900
Input/Output MBH* 175/148Operating Temperature °F 180
°C 82Operating Pressure psi 1-5Fuel Consumption (max) gph 1.0
lph 3.8Run Time days 4+Pump Capacity gpm/gph 30/1800
lpm/lph 110/6800
Thawzall Hydronic PortableHeating & ConcreteCuring System
7
DIMENSIONS & CAPACITIES SPECIFICATIONS
L x W x H in 161 x 74 x 79cm 409 x 190 x 200
Weight w/fuel & fluid lbs 3,460kg 1,570
Optional Generator lbs 500kg 230
Fuel Capacity gal 102liters 390
HTF (Heat Transfer Fluid) gal 56liters 212
HTF Pump, Single closed loop centrifugalHose Length(2 zones x 600’) ft 1,200(2 zones x 182m) m 365
Electrical, GFI 20 amp x 120 vacHTF Pumpability °F -80
°C -62Fuel Winter blend diesel or #1 fuel oilHitch Choices Forged, Stamped, or PintleDiesel Generator 7.0 KWH
Rental Rates:
Day
Week
Month
Season
Purchase
Standard HEATZONE® features:Fire Extinguisher, hour meter, roof-top message beacon,Heatzone® digital display return temperatures,fork liftpicks, Hitch breakaway system, LED lights. Complieswith all known electrical, industrial, institutional, andsafety codes to include: NHTSA, CSA, TransportCanada, UL, and IBR.
* MBH = Thousand BTUs per hour
8
H250SL
Thawzall Hydronic Portable Heating &Concrete Curing System
New HEATZONE™ Model H250SLReplaces the industry favorite Model 6A. Improvedcapability with patented HEATZONE® fluid distribution technology.Superior THAW, CURE, HEAT for any job. Delivers a blistering 250 MBH ofHEAT with unparalleled uniformity through 3000' (915m) - 5 zones of 600'(182m) of 5/8" (16mm) hydronic heat hose. Thawzall's patented HEATZONE®technology delivers HEAT more uniformly, THAWS more quickly and save aminimum of 24 gallons (91 liters) of fuel per day over its closest competitor.Expandable with accessories.
PERFORMANCE
THAW frozen ground sq ft 3,000-6,000sq m 278
CURE concrete sq ft 6,000sq m 550
with accessories sq ft 18,000 maxsq m 1,670 max
FROST prevention sq ft 9,000sq m 840
with accessories sq ft 27,000 maxsq m 2,500 max
HEAT buildings cu ft 400,000cu m 11,300
Input/Output MBH* 280/234Operating Range °F 70-180
°C 21-82Operating Pressure psi 1-5Fuel Consumption (max) gph 1.75
lph 6.62Run Time days 3+Pump Capacity gpm/gph 30/1800
lpm/lph 110/6,800
9
New SL Technology. Revolutionize Your Winter Concrete Curing Projects...With innovation HEATZONE® technology. HEATZONE® patentedtechnology enables winter contractors to precisely control concrete CURINGtemperatures and/or select THAW with a flick of the wrist. No morecomplicated (and possibly expensive) guessing game as to what furnacetemperature setting will give you the proper CURE temperature.
DIMENSIONS & CAPACITIES SPECIFICATIONS
L x W x H in 170 x 84 x 97cm 431 x 213 x 246
Weight w/fuel & fluid lbs 5,600kg 2,540
Optional Generator lbs 310kg 140
Fuel Capacity gal 160liters 600
HTF (Heat Transfer Fluid) gal 122liters 460
Two - 1/2 hp Pumps closed loop centrifugalHose Length(5 zones x 600’) ft 3,000(5 zones x 182m) m 915
Electrical, GFI 2) 20 amp x 120 vacHTF Pumpability °F -80
°C -62Fuel Winter blend diesel or #1 fuel oilHitch Choices Forged, Stamped, or PintleDiesel Generator 7.0 KWH
Liquid Cooled
Rental Rates:
Day
Week
Month
Season
Purchase
Standard HEATZONE® features:Fire Extinguisher, hour meter, roof-top message beacon,Heatzone™ digital display return temperatures,fork liftpicks, hitch breakaway system, LED lights. Complieswith all known electrical, industrial, institutional, andsafety codes to include: NHTSA, CSA, TransportCanada, UL, and IBR.
* MBH = Thousand BTU’s per hour
10
XH850EXTREME HEATThawzall Hydronic Portable Heating &Concrete Curing System
Rental Rates:
Day
Week
Month
Season
Purchase
* Base XH850 is configured without hose.Multiple hose reels with different size hose will be requireddepending upon application. Consult with factory.
Complies with all known electrical,industrial, and safety codes to include: NHTSA, CSA, TransportCanada, UL, and IBR.
* MBH = Thousand BTUs per hour
PERFORMANCE
THAW frozen ground sq ft 12,000with accessories sq m 1,115
sq ft 72,000 maxsq m 6,700 max
CURE concrete sq ft 36,000with accessories sq m 3,350
sq ft 72,000 maxsq m 6,700 max
FROST prevention sq ft 36,000with accessories sq m 3,350
sq ft 72,000 maxsq m 6,700 max
HEAT buildings cu ft 1,500,000cu m 42,500
Input/Output MBH* 1,083/900Operating Temperature °F 180
°C 21-82Operating Pressure psi 1-5Fuel Consumption (max) gph 7.5 (diesel)
lph 28Fuel Run Time days (external supply)Pump Capacity gpm/gph 112/6720
lpm/lph 425/25500
11
DIMENSIONS & CAPACITIES SPECIFICATIONS
L x W x H in 235 x 98 x 108cm 597 x 250 x 275
Weight w/fuel & fluid lbs 7,690kg 3,500
Fuel Capacity gal external supplyHTF (Heat Transfer Fluid) gal 110
liters 415
Four - 1/2 hp Pumps closed loop centrifugalHose Length 0Electrical, GFI 3 - 20 amp x 120 vac
external supply requiredHTF Pumpability °F -80
°C -62Fuel Winter blend diesel or #1 fuel oilHitch Choices Forged, Stamped, or PintleRamp (optional) Aluminum
A Gargantuan Reservoir...of HEAT energy wrapped up in a conveniently portable package.
Rated at over one million input BTUs per hour the Extreme Heat deliversextreme HEAT for all winter heat applications. Features four
independent closed loop circulation systems giving the user unmatchedflexibility to mix, match and balance THAW, CURE, and HEAT applications.
Available with oil, LP or NG burners.
Different configurations are available depending upon application to include:diesel generator, fuel, unit heaters, and other considerations. Please consult the factory.
12
COLD WEATHER CONCRETEThawzall Products Conform to New GuidelinesThe ACI (American Concrete Institute) guidelines for cold weatherconcreting have been recently updated as of October 2010. Untilrecently, outdated guidelines dating back to 1988 have been in use.
The new guidelines provide extensive guidance for contractors pouringconcrete in winter conditions. Thawzall strongly recommends thatcontractors refer to these guidelines prior to winter construction relatingto concrete placement.
There are several important points to make note of in the new guidelines.
A rising phrase in the industry today is “Maturity Monitoring”.Concrete maturity is based on the concept that the combination ofcuring time and temperature of the concrete results in a specific strengthfor a given concrete mixture.
When it comes to Specification Recommendations, heat must be madeavailable to maintain the concrete temperature throughout the concreteat 50° F (10° C) or above until protection can be safely discontinued.
Regarding the use of equipment, it has been found that in manyinstances, hydronic heaters and insulation blankets are adequate tomaintain concrete placements within the proper curing temperaturerange, versus the building of enclosures and heaters to maintain therecommended temperatures.
Hydronic heaters circulate a heated glycol/water heat transfer fluid(liquid) through a system of heat transfer hoses placed on the surface.The heater remains outdoors so no products of combustion enter theworkspace or contact the concrete.
Thawzall Offers Product to Meet Your Needs The ability to control temperatures as noted in the guidelines is self-contained in Thawzall’s SL technology where temperature is controlledthrough a single lever combined with a mixing valve. This technology asfound in all the SL models and is far superior in its distribution of heatand control of temperature than found in competitor’s models.
Although SL Technology is superior in meeting today’s guidelinesThawzall has always been able to produce even and uniform heatthrough its use of patented (#5,964,402) manifold technology whichextends the reach and capability of Thawzall equipment. The technologyis expandable to be able to use on large jobs where it is necessary toextend the distance away from the base machine to conduct both THAWand CURE operations.
13
Isuzu 7.0 KWHPart #250-074
• Two cylinder, 1800 RPM• Fuel consumption 0.51 GPH (1.9 LPH)• Used on H250 Series
MQ-70007.0 KWHH150 Part #250-080H250 Part #250-081
• Two cylinder, 3,000 RPM• Use on Model H150and H250
GENERATORS, Continuous DutyAll diesel powered, liquid-cooled generators offered by Thawzall forthe HeatZone® fleet have met a rigorous selection process and arerated for continuous 24/7 operation.
• Mounted, tested, and ready for operation• An exceptional history of service reliability
Kubota E330 3.5 KWHPart #250-071
• Single cylinder, 2800 RPM• Fuel consumption0.75 GPH (2.8 LPH)
• Use on Model H150
HEATZONE™ SERIES CF100Rugged, and perfect for portable hydronic airheating applications. Designed for harsh environmentsand high reliability. The fan drive is completely enclosedfor safety and durability. Provides warm dry heat withabsolutely no combustion fumes. Connecting hosesmake these perfect for positioning in remote areas. Theyhave small footprints and low center of gravity for stablepositioning where you need heated air. The dischargeface has integral low friction rub rails that allow it to beeasily slid along horizontal surfaces and large pipes.
UNIT HEATERS
Part 190-CF100• 100 MBH heat output• 0.5 HP• 2000 CFM• Static pressure 0.75 wc• 120 VAC 10 amps, 60 Hz• 20 inch X 19 inch footprint(51 cm X 48 cm)
• 38 inches high, 95 lbs.(96 cm high, 43 kg)
• Fits through 24 in. (60 cm)dia. manhole
• 50’ - 1” hoses recommended(15 m - 250 mm)
Part 190-CF100XP• Explosion-Proof rated for Class 1, Div 1, Group D• UL and CSA Listed for hazardous environments• 100 MBH heat output• 0.5 HP• 2000 CFM• Static pressure 0.75 wc• 120 VAC 10 amps 60 Hz• 20 inches X 19 inches footprint(51 cm X 48 cm)
• 38 inches high, 70 lbs.(96 cm high, 32 kg)
• Fits through 24 in. (60 cm) dia. manhole• 50’ - 1” hoses recommended (15 m - 250 mm)
Part 190-CF200• 200 MBH heat output• 1.0 HP• 2500 CFM• Static pressure 1.2 wc• 120/240 VAC 17 amps 60 Hz• 29 inches X 25 inches footprint(75 cm X 65 cm)
• 46 inches high, 160 lbs.(116 cm high, 73 kg)
• 50’ - 1” hoses recommended(15 m - 250 mm)
Similar to the CF100, the explosion-proof CF100XP is specifically designed tobe used in hazardous environments such as petrochemical, mining, refinery,and other explosive environments, which require explosion proof devices.
The hydronic HEAT/COOL unit is specifically engineered and sized tobe inserted into the interior of petrochemical and oil tanks through themanhole cover to provide explosion-free heating and cooling.
Sturdy aluminum construction with generous hand-holds, make this unitperfect for manhandling into tight places.
HEATZONE™ SERIES CF200
14
2 Port Manifold2 port manifold used to expandTHAW/CURE capability.
15
UNIT HEATERSUnit heaters are used to provide flameless, clean,fume-free, dryheat to any interior space. OSHAand state regulations continue to target theunhealthy consequences of using combustedheat produced by torpedo heaters in enclosedspaces. What about the health of your workforce?Winter construction is as tough as it gets –employees deserve a healthy work environment.
Because Thawzall unit heaters provide dry heat,drywall dries faster without toxic biproducts ofcombustion deposited on the interior workspace;
paint contractors get to paint soonerand your project stays on schedulewith a healthier, more motivatedworkforce which of course includesall of the subs on the job as well.
Auxiliary HoseIncludes 600’ x 5/8” (182m x 16mm) continuoussection of high durability hydronic heat hosefilled with hydronic fluid and 2 quick couplers.
Part #190-UH
Part #196-RM2P
ACCESSORIES
5 Port Manifold5 port manifold usedto expand THAW-CURE capability.
Part #196-RM5P
Part #1-26-0080
16
ACCESSORIESCCS Concrete Curing StationThe CCS allows you to easily expand the capabilityof your older machines that do not have SLtechnology by allocating and distributing BTUsneeded for correct CURING of concrete whileallowing the boiler to run at full capacity and maxefficiency. Concrete CURES best at a nominaltemperature of 50-70° F. Simply set the CCS forthe desired temperature of the hydronic fluid andlet the distributed HEAT energy do its job in themost efficient manner possible with minimalmonitoring and worry on your part. The CCS includes our 5-zonepatented fluid distribution system and includes 2 - 50’ (15m)sections of hose for connection to the accessory port on theThawzall base unit.
Remote ManifoldExtends the reach and capability ofyour Thawzall base unit. Typically
used on large jobs where it isnecessary to extend the distanceaway from the base machine toconduct both THAW and CURE
operations. This accessory includes a5-zone patented manifold fluiddistribution system and 2 - 50’
sections of hose.
Part #196-RM
Part #185-CCS
Hose Reel AssemblyIncludes 3,000 ft. (5 x 600’ lengths) of hydronicheat hose. Typically used with both theCCS and Remote Manifold to extend andexpand the range of the Thawzall baseunit. Coupled with Thawzall’s patented5-zone manifold fluid distributionsystem, this accessory includes fork liftpockets and allows the wintercontractor to greatly expand thedistance and area to which HEATenergy is supplied while preciselyallocating equal energy to each zonefor an even THAW or CURE over theentire area.
Hose Reel Complete(as shown)with 3000’ HTF hose &QC ConnectorsPart #180-HRC
Hose Reelwithout HosePart #180-HRP
17
1/2” Coupler SetPart #1-25-0110
Bell & Gossett VolutePart #1-28-0010
Primary ControllerPart #1-27-0290
Bell & Gossett PumpPart #28-015
EM-125 FurnacePart #27-200
EM-200 FurnacePart #27-220
Fork Lift PickPart #600-151
1” Quick DisconnectsPart #25-800040 Female, 041 Male
FurnaceTroubleshooting GuidePart #54-077
ACCESSORIES
REPLACEMENT PARTS
Sight Flow w/Temp GaugePart #11111
Hose Crimping ToolPart #1-26-0010
Coupler Cleaning StationPart #30-500-11092
Field Repair KitPart #1-80-0001
Five Foot Test HosePart #1-26-0045
RefractometerPart #1-26-0005
18
Hose Mender KitPart #1-26-0200
1 1/2” Dielectric GasketPart #1-20-0011
Replacement Keys (set of 2)Part #1-81-0010
Taco PumpPart #28-070
Cryo-Tek 100 5 Gallon PailPart #26-090
Cryo-Tek 10055 Gallon DrumPart #26-091
Aquastat Security HousingPart #40-30-11004
Replacement Fuel CapPart #1-84-0010
Hose Reel Brake AssemblyPart #500-135
3” Bi-Metal Thermometerw/Thawzall LogoPart #1-20-030
1A-30Replacement ElementPart #1-27-0155
Fire ExtinguisherPart #80-000
Sight FlowIndicator Repair KitPart #1-20-0101
Beckett Burner GasketPart #1-27-0060
Temperature/Presssure GaugePart #1-27-0325
REPLACEMENT PARTS
19
HEAT TECHNOLOGYUse HeatZone™ HEAT Technology for Dry Heat in Buildings and Enclosed Workspaces.
Contact Thawzall Technical Support 888-757-3545 for assistance.
1. Select and insulate the enclosed space to be temporarily heated.• Determine temperature desired and MBH (1000 BTUs per hour) heat required.For comparison purposes, a large-sized, reasonably insulated home can be easilyheated in severe winter climates with a furnace that produces less than 100 MBH.
• Steady state temperature of the enclosed space will be contingent on R-value, windvelocity, nighttime lows, cubic feet of space to be heated and MBH delivered.
2. Position unit heater(s) in space to be warmed.• Unit heaters are available in either 100 or 200 MBH sizes.
3. Connect heaters to Thawzall HeatZone™ base unit so that output is matched to number of unit heaters selected.
Some Examples:
Match 2 – 100 MBH unit heaters with an H250 HeatZone™ unitMatch 1 – 200 MBH unit heater with an H250 HeatZone™ unitMatch 4 – 200 MBH unit heaters with an XH850 HeatZone™ unitMatch 8 – 100 MBH unit heaters with an XH850 HeatZone™ unit
THAW TECHNOLOGY1. Prepare site for thawing.
• Remove snow and ice.• Pooling of water in low spots must be removed. • A smooth site thaws more efficiently and evenly.
2. Position hose for optimal thawing. • Place hose directly on thaw site. Hose spacing determines the rate and consistencyof the thawing process as follows:
• To prepare for excavation, space hose lines 12-24 inches (305-610mm) apart. Smallareas of frost remaining between the lines do not hamper excavation.
• To prepare for concrete pours, space hose lines 12 inches (305mm) apart. This willeliminate any patches of frost between lines.
• To increase thaw rate, space hose lines 6-12 inches (152-305mm) apart.
3. Consider placing a poly water vapor barrier over hoses. • The need for a poly barrier is dependent upon soil type and moisture content in thesoil. Check with Thawzall Technical Support 888-757-3545.
• Place poly barrier (minimum 3ml) over the hoses to minimize heat loss as well askeep soil moist and thermal blankets clean.
4. Lay thermal blankets over poly barrier and/or hoses. • Multiple layers (at least 2) of thermal blankets crisscrossed will maximize heatretention and drive heat from the hose into the ground.
• THAW time nominally up to 1 foot deep/day (305mm) varies based on hose spacing,soil type, moisture content, ambient air temperature, and R-factor of insulatingblankets placed on top of the hoses.
5. Site is now prepared for excavation, frost prevention, or curing slab-on-grade.
MANIFOLD
CCS
PUMP
FURN
ACE
MA
INCO
NCR
ETE
TO B
E CU
RED
(TO
P VI
EW)
20
Concrete Curing with New Improved HeatZone™ Technology
Thawzall circulates up to 93% more HTF (Heat Transfer Fluid) per minute than a significantcompetitor. Result?
• Greater uniformity of heat distribution• More BTU’s where needed• More efficient control of temperature
Resulting in Time, Fuel & Savings.
CURE TECHNOLOGY
Typical hose layout, 12” to 24” (305-610mm) on center depending upon
application, weather conditions, insulation, and other factors
CAUTIO
N:
HeatZone™ technology single lever THAW-CURE capability may not be included in the Thawzall machine that you need to use for concrete curing.
If this is the case, you must use a CCS (Concrete Curing Station) to maintain concrete cure temperatures between 70-80°F (21-26.5°C). Contact
the factory at 888-757-3545 for a free pictorial guide to help you with an H150 CCS setup. The sam
e basic procedure can be expanded to include
older m
odels 2M
& 6A as well as the newer H250.
(H150 show
n)
21
It may be economically feasible to use Thawzall HeatZone™ equipment to keep the groundfrom freezing in late fall or early winter as the use of fuel will be significantly less as
compared to a deep thaw project later on into the winter season.
1. Prepare Site.• Smooth the site and remove all debris.
2. Position Hose.• Use 24” (610mm) centers for optimum hose coverage.
3. Spread thermal blankets.• Lay a crisscross layer of thermal blankets (at least 2 layers) over the hose to minimize heat loss and retain natural ground heat.
4. Optimize return temperature of HTF (Heat Transfer Fluid).• Monitor and set Thawzall’s patented HeatZone™ system to evenly distributeand accurately control HTF return temperature so that ground temperature stabilizesat or above 50ºF (10°C).
• Do NOT reduce furnace temperature setting to reduce furnace temperature –this will reduce process efficacy and shorten furnace life.
Concrete Curing Facts:
• To CURE concrete properly in cold weather, you must maintain the concrete temperature between 50-70°F (10-21°C).
• If the concrete temperature rises above 70°F (21°C), during CURE, it will dry tooquickly possibly causing cracking, hazing, and in extreme heat situations, causereduced strength (PSI) and potentially explosive ruin.
• If the concrete temperature falls below 50°F (10°C) during CURE, set times will extendfrom hours to days, PSI strength will be jeopardized as temperatures approach freezingand, if concrete freezes prior to being cured, you may have an expensive demolitionproject on your hands.
• Thawzall’s CCS (Concrete Curing Station) allows you to easily maintain curetemperatures between 50-70°F (10-21°C).
For detailed information on Curing Slab on Grade, Pour-in-Place Walls,and Elevated Slabs refer to our website at www.thawzall.com
CURE TECHNOLOGY
FROST PREVENTION TECHNOLOGY
22
23
PATENT #5,964,402
PRINTED 01-11
“Takes a beating, and keeps on heating”
