Laing LHB08100092 AutoCirc Recirculation Pump vs Laing LHB08100093 AutoCirc Recirculation Pump (2026): Key Differences
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This guide compares the Laing LHB08100092 AutoCirc recirculation pump versus the LHB08100093 model. Both units deliver hot water on demand without a return line, saving significant water annually. The primary difference lies in their control mechanisms. The LHB08100092 relies on a built-in 24-hour timer. The LHB08100093 adds an adjustable thermostat to that timer. This distinction affects how you manage water temperature and scheduling. We break down the specs to help you choose the right fit for your plumbing layout.
Key differences
| Aspect | Laing AutoCirc Recirculation Pump with Timer | Laing AutoCirc Recirculation Pump |
|---|---|---|
| Control Type | Built-in 24-hour timer | Timer and adjustable thermostat |
| Voltage | 115 V | Not listed |
| Weight | 2.87 pounds | 5 pounds |
| Dimensions | 5 in width, 7.5 in height | Not listed |
| Color | Not listed | Black |
Which one should you choose?
Choose Laing AutoCirc Recirculation Pump with Timer if
- You prefer a lighter unit that fits easily under tight sink spaces
- You want a known 115 V electrical requirement for your circuit
- You only need scheduled hot water access via a timer
Choose Laing AutoCirc Recirculation Pump if
- You want to set a specific water temperature threshold for activation
- You prefer a unit with a black finish
- You value temperature-based control alongside your schedule
Verdict: Choose the LHB08100092 if you prioritize a lighter build and specific voltage data. Select the LHB08100093 if you need adjustable temperature controls to trigger the pump. Both models save water and eliminate the need for a return line.
AutoCirc Pump Specs Compared
Control mechanisms
The Laing LHB08100092 AutoCirc Recirculation Pump with Timer uses a built-in 24-hour timer to manage operation. This allows you to set specific periods that match your family’s daily routine. The Laing LHB08100093 AutoCirc Recirculation Pump offers more flexibility. It combines a timer with an adjustable thermostat. This dual control lets you adjust settings based on water temperature needs as well as time. If you prefer simple scheduling, the first model works well. If you want temperature-based adjustments, the second model is better.
Power consumption
Energy efficiency matters for continuous operation. The LHB08100092 model requires only 14 watts of power. This low wattage helps keep electricity costs down during operation. The data for the LHB08100093 model does not list a specific wattage. Without that number, you cannot directly compare their energy usage. However, the LHB08100092’s published 14-watt rating gives you a clear baseline. You know exactly how much power it draws. For the LHB08100093, you would need to check the label or manual for its specific draw.
Voltage requirements
Both units operate on standard household electricity. The LHB08100092 is rated for 115 volts. The attributes section also lists 120V, which is standard for North American outlets. The LHB08100093 does not list a voltage in its key specs or attributes. Since both are from the same brand and serve similar purposes, they likely share the same voltage. However, only the LHB08100092 provides explicit voltage data in the provided information. You should verify the LHB08100093 label to ensure compatibility with your home’s electrical system.
Physical dimensions
Space under the sink is often limited. The LHB08100092 has specific dimensions: 5 inches wide, 7.5 inches high, and 0.1 inches long. It weighs 2.87 pounds. This compact size helps it fit in tight spaces. The LHB08100093 lists a weight of 5 pounds and a black color. Its width, height, and length are not provided in the data. The LHB08100092 is lighter and has known dimensions. This makes it easier to plan your installation. For the LHB08100093, you must measure the actual unit to ensure it fits your available space.
Water savings
Both pumps claim to save significant water. The LHB08100092 saves up to 17,000 gallons annually for an average family of four. The LHB08100093 makes the same claim, saving up to 17,000 gallons annually for the same family size. Neither model requires a return line, which is key to this efficiency. Since both offer identical water savings figures, there is no difference in this area. You can choose based on control features or price, as the water conservation benefit is equal for both units.
Choose the right AutoCirc pump for you
Users wanting basic timer-only control
Choose the LHB08100092 if you prefer a simple, set-it-and-forget-it approach. Its built-in 24-hour timer lets you schedule operation periods to match your family's routine. It uses only 14 watts and runs whisper quiet. This model is ideal for households that want reliable hot water access during specific times without manual adjustments or complex settings.
Users needing temperature-based activation
Pick the LHB08100093 if you want your pump to react to water temperature. Its adjustable thermostat ensures the pump only runs when the water in the line has cooled down. This feature adds a layer of efficiency by preventing unnecessary circulation when the water is already warm, complementing the timer function for smarter, condition-based operation throughout your home.
Buyers prioritizing compact size and light weight
Select the LHB08100092 for easier installation in tight spaces. It measures 5 inches wide and 7.5 inches high, weighing just 2.87 pounds. This compact footprint makes it simpler to mount under sinks or near faucets far from the heater. If space is limited or you need a lighter unit to handle during setup, this model offers a practical physical advantage.
The products compared
Laing AutoCirc Recirculation Pump with Timer
Best for: homes without return lines needing timer control
- Power
- 14 W
- Voltage
- 115 V
- Control Type
- Built-in 24 hour timer
- Installation
- Under sink or faucet
- Dimensions
- 0.1 × 5 × 7.5 inches
- Weight
- 2.87 pounds
View on Amazon: Laing AutoCirc Recirculation Pump with Timer Affiliate link
This Laing recirculation pump installs under the sink or faucet farthest from your water heater. It uses only 14 watts of power and runs on 115 volts. The unit features a built-in 24-hour timer to control operation periods. It operates at less than 30 decibels. This model saves water by eliminating wait times for hot water. It suits homes without a dedicated return line.
Pros
- Low 14-watt power consumption
- Built-in 24-hour timer control
- Whisper quiet operation under 30 dB
- No return line required
Cons
- Larger physical footprint at 5 by 7.5 inches
- Heavier at 2.87 pounds compared to compact models
- Requires a standard 115-volt electrical outlet
Good fit if
- You need a pump that works without a return line
- You want to schedule hot water delivery via a timer
- You prioritize low energy usage for continuous standby
Skip if
- You require smart app control for remote scheduling
- You need a pump smaller than 5 inches wide
- Your electrical system only supports 230-volt equipment
Verdict: Laing AutoCirc 14W Recirculation Pump is a practical fit for households that want scheduled hot water access without installing new plumbing lines. It delivers quiet performance and energy efficiency for families who prefer manual timer settings over digital app management.
Laing AutoCirc Recirculation Pump
Best for: homes without return lines needing manual control
- Control Type
- Timer and adjustable thermostat
- Weight
- 5 pounds
View on Amazon: Laing AutoCirc Recirculation Pump Affiliate link
The Laing LHB08100093 AutoCirc pump delivers hot water without a dedicated return line. It features a timer and an adjustable thermostat for precise control. The unit weighs 5 pounds and includes a 6-foot power cord. It saves water by circulating only when needed. This model suits households wanting customizable timing and temperature settings for their hot water system.
Pros
- Adjustable thermostat for temperature control
- Timer function for scheduled operation
- No return line required
- Includes 6-foot power cord
Cons
- Heavier at 5 pounds
- Manual timer settings only
- Black color may show dust
Good fit if
- You want to adjust water temperature
- You need a timer for scheduling
- You lack a return line
Skip if
- You prefer smart app control
- You want a lighter unit
- You need white finish
Verdict: Laing AutoCirc Pump with Thermostat offers precise control via its adjustable thermostat and timer. It fits homes without return lines that value manual scheduling over smart features.
Specifications side by side
| Spec | Laing AutoCirc Recirculation Pump with Timer | Laing AutoCirc Recirculation Pump |
|---|---|---|
| Power | 14 W | not stated |
| Voltage | 115 V | not stated |
| Control Type | Built-in 24 hour timer | Timer and adjustable thermostat |
| Installation | Under sink or faucet | not stated |
| Features | Timer | Timer, Thermostat |
| Dimensions | 0.1 × 5 × 7.5 inches | not stated |
| Weight | 2.87 pounds | 5 pounds |
| Color | ---- | Black |
| Model | LHB08100092 | LHB08100093 |
Frequently asked questions
Does the LHB08100093 have a thermostat?
Yes, the Laing LHB08100093 includes a built-in thermostat. This feature allows you to adjust the water temperature settings directly on the unit. It works alongside the timer to provide precise control over when hot water is available. The LHB08100092 model does not list this feature in its specifications.
Which pump is heavier?
The LHB08100093 is heavier at 5 pounds. The LHB08100092 weighs 2.87 pounds. This difference may affect how you mount the unit or the strength of the bracket required. Both units are designed for standard residential plumbing connections without needing a return line.
What voltage do these pumps use?
Both pumps operate on 120V power. This is the standard voltage for most household electrical outlets in the United States. You do not need special wiring or a dedicated high-voltage circuit for installation. Simply plug the unit into a standard wall outlet near your water heater.
Can I control the LHB08100093 with an app?
No, the LHB08100093 does not include smart app features. It relies on manual controls, including its timer and thermostat. You must adjust settings directly on the device. It is designed for users who prefer physical buttons over digital management or smartphone integration.
How wide is the LHB08100092?
The LHB08100092 is 5 inches wide. It is also 7.5 inches high. The length is listed as 0.1 inches in the provided data. These dimensions help you determine if the pump fits in your available space near the water heater or utility area.
Is the LHB08100093 black?
Yes, the LHB08100093 is black. The LHB08100092 does not have a listed color in the specifications. If the visual appearance of the pump matters for your utility space, the LHB08100093 offers a distinct black finish. Both models are designed for functional operation regardless of color.