Bosch TR4000C-8*
0.92 UEF DOE CCD · 2026-09-19Grade G: where this UEF sits among the 271 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
An electric tankless unit, very small draw pattern (small units - a single bathroom, or a point-of-use heater under a sink).
If you are verifying the Bosch TR4000C-8*, it uses 642 kWh a year at the very small draw pattern, the standard daily hot-water usage DOE tests against. That is 27 kWh above the class median of 615 kWh. It ranks 249th lowest for energy use among 271 models.
Energy use per year
642 kWh a year
Computed by this site from the registry's UEF and the federal test's daily hot-water draw for this draw pattern. What it costs depends on the electricity rate where you live.
That is above the median of 615 kWh for the 271 models registered in the same heater type and draw pattern; it ranks 249 of 271, lowest energy first.
Solid line: this model (642 kWh). Dashed line: the class median.
Min 562 kWh Median 615 kWh Max 649 kWh
What it costs to run where you live
What the registry files
- UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
- 0.92 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tankless unit at the very small draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Very small DOE CCD · 2026-09-19
- Maximum Gallons Per Minute how many gallons a minute it can heat while running continuously
- 0.9 gal/min DOE CCD · 2026-09-19
What it costs to install
$1,294–$1,742 installed
Not a quote — a modeled range of what installers have charged for this class of unit; your price will vary with labor rates, access, and local code requirements.
Escalation indexes: equipment (BLS PPI) latest available: August 2026; labor (BLS ECI) latest available: April 2026 to June 2026.
NLR REMDB (BLS PPI/ECI escalated) · 2026-04-01Safety record
No CPSC recall names this model.
Checked against the CPSC recall database. CPSC does not publish a model-level match for this product category, so this list is curated by hand from the manufacturer's recall filings.
CPSC · 2026-09-24What these figures mean
How this compares
The closest models in the same class — same fuel, type and draw pattern.
Keep going
How every figure on this page is calculated
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What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
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How to size a tankless water heater by GPM
Answered from what models in this size actually file.
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Water heaters
Every model on file with the Department of Energy, by heater type.
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All electric tankless water heaters
Electric instantaneous units, sized by flow rate rather than tank gallons.
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Every Bosch model on file
What this brand files, by heater type.
UEF 0.92 · Grade G Price it on your ZIP
This site computed the figure of 642 kWh; the registry does not publish it. The calculation combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw. The registry lists a UEF of 0.92 for this model. The result applies only to the very small draw pattern and to electricity. It comes from DOE CCD, retrieved 2026-09-19. Actual use in a home depends on how much hot water is drawn, which the test fixes at one value. The method for calculating annual cost is documented separately.
The 271 models registered as an electric tankless unit at this draw pattern have a median of 615 kWh. This model sits 27 kWh above that median. It ranks 249th lowest of 271, which places it in the highest quarter of its class for energy use. The registry also lists a maximum flow rate in gallons per minute of 0.9. That value describes flow, not energy. The data does not show how this model compares with its class under any other draw pattern, so no such comparison is made here.
The very small draw pattern covers small units, such as a single bathroom or a point-of-use heater under a sink. The figure of 642 kWh fits that use. It does not describe a unit serving several fixtures, and no figure for larger draw patterns is available here. Running cost is not stated in the text because it depends on your own utility electricity tariff. Enter your ZIP in the cost calculator to apply your rate. To compare other options, use the selector by fuel, space and size or find a same-class replacement by model number. The modeled installed-cost range appears in its own block on this page.
DOE CCD · 2026-09-19