Predictika · Vehicle air heaters

An AI sales agent's air heater order, checked before it goes out

An AI sales agent prepares an order for Webasto Air Top Evo 40 or 55 air heaters: the heater, the fuel and voltage, an installation kit, the number of heaters, the heating the vehicle needs, the altitude and temperature it works in, any hazardous-goods use, an optional control upgrade, and the heating capacity it states. Before it goes out, the agent sends the order to Predictika, which checks it against a declarative model of the figures Webasto publishes in its spec sheet and operating instructions and returns a verdict, every reason and the figures it computed.

Scope: Webasto Air Top Evo 40 and 55 air heaters: fuel and voltage availability, installation kits, control-range heating capacity, altitude, temperature, power draw, hazardous-goods (ADR) use and the SmarTemp 3.0 upgrade harness. See everything this validator covers

This validator models orders for the Webasto Air Top Evo 40 and Evo 55 air heaters, based on the public spec sheet and operating instructions, not just the scenarios shown below.

  • Heater, fuel and voltage — the Evo 40 and Evo 55 on diesel, biodiesel, HVO or gasoline at 12 V or 24 V. The spec sheet lists the gasoline versions at 12 V only, so a 24 V gasoline order is blocked.
  • Installation kits — ten published kit part numbers, each for one heater, one fuel family and, where the sheet states it, one voltage. A kit that does not match the heater, fuel or voltage ordered is blocked.
  • Capacity, altitude and temperature — heating capacity in the control range per heater (12,000 BTU/h for the Evo 40, 17,000 BTU/h for the Evo 55) against the heating the order needs and the capacity it states; automatic altitude compensation up to 18,044 ft for the Evo 40 on diesel-family fuel and 7,218 ft otherwise (above that a person confirms); operating temperature of minus 40 to plus 40 degrees Celsius.
  • Power and use — the draw of the heaters at 12 V against the supply budget, and for hazardous-goods (ADR) vehicles: manual switch only, with no timer or remote, and no direct heating of the cargo area. More than two heaters goes to a person.
  • Control upgrade — upgrading to SmarTemp Control 3.0 needs adapter harness 5013930 from a rheostat or 5013931 from SmarTemp 2.0.

Any order for these heaters that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (Webasto does not publish list prices, so this page shows no price build-up), other Webasto heater families, kit contents, voltage of the Bluetooth kits (the sheet does not state it), and shipping or availability.

The AI sales agentBuilds the heater order from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

8 scenarios in 4 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
Kits that fit only one heater, fuel and voltage (ten published kits)Only with workarounds
Each kit is for one heater and one fuel family, some also for one voltage. A rules-based CPQ needs a compatibility table or a rule per kit, and every spec sheet revision means editing them.		Heater, fuel, voltage and kit arrive in one request and are matched to the published kit rows on every call.
Capacity that depends on the heater and the number of unitsOnly with care
Capacity is units times a per-heater figure, compared with the demand and the stated figure; each needs its own computed field and rule.		Units, demand and the stated capacity travel in the request and are compared with the computed capacity.
Altitude limit that depends on heater and fuelOnly with care
The compensation limit differs by heater and fuel, and an order above it needs a person, not a refusal.		Heater, fuel and altitude are compared together and the result is an approval, not a block.
Hazardous-goods (ADR) vehicle rulesOnly with workarounds
The rules depend on how the vehicle is used and how the heater is switched, which are not part of the product choice, so they need extra input fields and cross-field rules.		Vehicle use, timer and cargo heating travel in the request and are checked with the rest.
Upgrade harness that depends on the existing controlOnly with care
The required harness depends on the control being replaced; it works but each control needs its own rule.		Existing control and harness are compared in one request.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the order is saved or a step is completed, so a person often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The order has 0 heaters; at least 1 is needed.
2The order needs 20,000 BTU/h; the heaters give 0 BTU/h in their control range.
3The spec sheet lists gasoline versions of the Air Top Evo 40 and 55 only at 12 V.
4The selected kit is for a different fuel than the one ordered; the spec sheet lists separate diesel and gasoline kits.
5The selected kit is for the Air Top Evo 40, not the Air Top Evo 55 ordered.
6The selected kit is for the Air Top Evo 55, not the Air Top Evo 40 ordered.
7The selected kit is a 24 V kit; the order is for 12 V.
8The selected kit is a 12 V kit; the order is for 24 V.
9The order needs 24,001 BTU/h; the heaters give 24,000 BTU/h in their control range.
10The order needs 17,001 BTU/h; the heaters give 17,000 BTU/h in their control range.
11The spec sheet lists automatic altitude compensation only up to 18,044 ft; a person should confirm operation at 18,045 ft.
12The spec sheet lists automatic altitude compensation only up to 7,218 ft; a person should confirm operation at 7,219 ft.
13The spec sheet lists automatic altitude compensation only up to 7,218 ft; a person should confirm operation at 9,000 ft.
14The ambient temperature of 41 degrees Celsius is outside the operating range of minus 40 to plus 40 degrees Celsius.
15The ambient temperature of -41 degrees Celsius is outside the operating range of minus 40 to plus 40 degrees Celsius.
16The heaters draw up to 80 W at 12 V in the control range; the supply budget is 79 W.
17In vehicles for hazardous goods (ADR) the heater must be switched on manually with a switch, not by a programmable timer or remote control.
18The heater is not approved for directly heating the cargo area of a hazardous-goods (ADR) vehicle.
19Upgrading to SmarTemp Control 3.0 from the existing control needs adapter harness 5,013,930 for a rheostat or 5,013,931 for SmarTemp 2.0; the order has a different one.
20The order states 26,000 BTU/h of heating capacity; the heaters give 24,000 BTU/h in their control range.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Hazardous-goods truck: Two Evo 40 heaters with a timer and cargo-area heating

    
The agent's request. Please quote 2 Webasto Air Top Evo 40 heaters on diesel at 12 V, with installation kit 5013908, for a vehicle that needs 20,000 BTU/h of heating, working at 1,500 ft and -15 degrees Celsius, with a 100 W supply budget, in a hazardous-goods (ADR) vehicle with a programmable timer, heating the cargo area. The order states 24,000 BTU/h of heating capacity. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Hazardous-goods vehicle cannot use a timer or remote. In vehicles for hazardous goods (ADR) the heater must be switched on manually with a switch, not by a programmable timer or remote control.
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  • Not approved to heat the cargo area of a hazardous-goods vehicle. The heater is not approved for directly heating the cargo area of a hazardous-goods (ADR) vehicle.
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2. Hazardous-goods truck: The agent resubmits after fixing the errors

    
The agent's request. Please quote 2 Webasto Air Top Evo 40 heaters on diesel at 12 V, with installation kit 5013908, for a vehicle that needs 20,000 BTU/h of heating, working at 1,500 ft and -15 degrees Celsius, with a 100 W supply budget, in a hazardous-goods (ADR) vehicle switched on manually. The order states 24,000 BTU/h of heating capacity. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. 2 heater(s) give 24,000 BTU/h in the control range against 20,000 BTU/h needed, with automatic altitude compensation up to 18,044 ft.
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3. Gasoline heaters for a delivery van: Two gasoline Evo 40 heaters with a diesel kit

    
The agent's request. Please quote 2 Webasto Air Top Evo 40 heaters on gasoline at 12 V, with installation kit 5011170, for a vehicle that needs 22,000 BTU/h of heating, working at 2,000 ft and 0 degrees Celsius, with a 100 W supply budget. The order states 24,000 BTU/h of heating capacity. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Kit is for the other fuel. The selected kit is for a different fuel than the one ordered; the spec sheet lists separate diesel and gasoline kits.
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4. Gasoline heaters for a delivery van: The agent resubmits after fixing the errors

    
The agent's request. Please quote 2 Webasto Air Top Evo 40 heaters on gasoline at 12 V, with installation kit 5011183, for a vehicle that needs 22,000 BTU/h of heating, working at 2,000 ft and 0 degrees Celsius, with a 100 W supply budget. The order states 24,000 BTU/h of heating capacity. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. 2 heater(s) give 24,000 BTU/h in the control range against 22,000 BTU/h needed, with automatic altitude compensation up to 7,218 ft.
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5. Heater for a cargo area at altitude: One Evo 40 for a cargo area that needs more heat than it gives

    
The agent's request. Please quote 1 Webasto Air Top Evo 40 heater on diesel at 12 V, with installation kit 5011171, for a vehicle that needs 14,000 BTU/h of heating, working at 9,000 ft and -10 degrees Celsius, with a 100 W supply budget. The order states 12,000 BTU/h of heating capacity. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Heating demand above the control-range capacity. The order needs 14,000 BTU/h; the heaters give 12,000 BTU/h in their control range.
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6. Heater for a cargo area at altitude: The agent resubmits after fixing the errors

    
The agent's request. Please quote 1 Webasto Air Top Evo 55 heater on diesel at 12 V, with installation kit 5011177, for a vehicle that needs 14,000 BTU/h of heating, working at 9,000 ft and -10 degrees Celsius, with a 100 W supply budget. The order states 17,000 BTU/h of heating capacity. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • Altitude above automatic compensation. The spec sheet lists automatic altitude compensation only up to 7,218 ft; a person should confirm operation at 9,000 ft.
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  • Order summary. 1 heater give 17,000 BTU/h in the control range against 14,000 BTU/h needed, with automatic altitude compensation up to 7,218 ft.
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7. Control upgrade: Two Evo 40 heaters upgraded with the wrong harness

    
The agent's request. Please quote 2 Webasto Air Top Evo 40 heaters on diesel at 12 V, with installation kit 5013908, for a vehicle that needs 22,000 BTU/h of heating, working at 2,000 ft and 0 degrees Celsius, with a 100 W supply budget, upgrading from a rheostat to SmarTemp Control 3.0 with adapter harness 5013931. The order states 24,000 BTU/h of heating capacity. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Wrong adapter harness for the control upgrade. Upgrading to SmarTemp Control 3.0 from the existing control needs adapter harness 5,013,930 for a rheostat or 5,013,931 for SmarTemp 2.0; the order has a different one.
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8. Control upgrade: The agent resubmits after fixing the errors

    
The agent's request. Please quote 2 Webasto Air Top Evo 40 heaters on diesel at 12 V, with installation kit 5013908, for a vehicle that needs 22,000 BTU/h of heating, working at 2,000 ft and 0 degrees Celsius, with a 100 W supply budget, upgrading from a rheostat to SmarTemp Control 3.0 with adapter harness 5013930. The order states 24,000 BTU/h of heating capacity. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. 2 heater(s) give 24,000 BTU/h in the control range against 22,000 BTU/h needed, with automatic altitude compensation up to 18,044 ft.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares an order for Webasto Air Top Evo 40 or 55 air heaters: the heater, the fuel and voltage, an installation kit, and more. Before it goes out, the agent sends the order to Predictika, which checks it against a declarative model of the figures Webasto publishes in its spec sheet and operating instructions and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote 2 Webasto Air Top Evo 40 heaters on diesel at 12 V, with installation kit 5013908, for a vehicle that needs 20,000 BTU/h of heating. The order states 24,000 BTU/h of heating capacity. The rest of the request is on screen.
    4. 
      
  4. Before it goes out, the agent calls the validator.
    5. 
      
  5. Blocked, with two findings, all in one answer. In vehicles for hazardous goods (ADR) the heater must be switched on manually with a switch, not by a programmable timer or remote control. The heater is not approved for directly heating the cargo area of a hazardous-goods (ADR) vehicle.
    6. 
      
  6. The validator returned two blocking findings in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for hazardous-goods (ADR) vehicle rules, a rules-based CPQ can do this only with workarounds.
    8. 
      
  8. Now the agent resubmits.
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  9. The corrected request. It removes the timer or remote switching and heats the cargo area.
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  10. It calls the validator again.
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  11. This time the validator clears it.
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  12. Both earlier findings are cleared, and the validator's figure matches the quote.
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  13. Two problems caught in one call, fixed in one pass, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer.
    14.