# Bosch Greentherm T9900i SE 199: specs and price

**Price (US):** $3583.27 (Craft Supply (thecraftsupply.com) lists the exact model — "Bosch Greentherm T9900i SE 199 NG/LP Tankless Water Heater With WiFi", SKU 7736503732 — at $3,583.27 (verbatim on the fetched page). No manufacturer MSRP was published on any fetchable page, and retailer street prices vary widely (e.g. Anderson-Bolds $2,499.00), so the exact-model retailer figure is used.), as of 2026-07-11. Among the 7 tankless water heaters we track it is the most expensive; category median $1295.62.
**Brand:** Bosch
**Deskmark:** Bronze Deskmark — pay-blind category standing 36/100, #6 of 8 in class (independent, computed from sourced data, never for sale).

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $3583.27 |
| Brand | Bosch |
| Fuel type | natural-gas |
| Max flow rate gpm | 11.2 |
| Max btu per hour | 199000 |
| Power input (kW) | — |
| Uniform energy factor | — |
| Condensing type | condensing |
| Min activation flow gpm | 0.45 |
| Vent type | pvc |
| Max temp f | 140 |
| Heat exchanger warranty yrs | 15 |
| Wi-Fi enabled | Yes |
| Weight (lb) | 85 |

## Where it stands

At $3583, the Bosch Greentherm T9900i SE 199 is the most expensive of the 7 tankless water heaters we track, where the median is $1295.62. On the spec sheet, its max flow rate gpm of 11.2 is the highest of the 8, its heat exchanger warranty yrs of 15 is the highest of the 7, and its weight of 85 lb is the highest of the 6.

## Frequently asked questions

**How much does the Bosch Greentherm T9900i SE 199 cost?**

The Bosch Greentherm T9900i SE 199 has a US price of $3583.27 (Craft Supply (thecraftsupply.com) lists the exact model — "Bosch Greentherm T9900i SE 199 NG/LP Tankless Water Heater With WiFi", SKU 7736503732 — at $3,583.27 (verbatim on the fetched page). No manufacturer MSRP was published on any fetchable page, and retailer street prices vary widely (e.g. Anderson-Bolds $2,499.00), so the exact-model retailer figure is used.), as of 2026-07-11.

**How does the Bosch Greentherm T9900i SE 199 compare on price?**

At $3583, the Bosch Greentherm T9900i SE 199 is the most expensive of the 7 tankless water heaters we track, where the median is $1295.62.

**What are the Bosch Greentherm T9900i SE 199's key specs?**

Bosch Greentherm T9900i SE 199 (Bosch): fuelType natural-gas, maxFlowRateGpm 11.2, maxBtuPerHour 199000, condensingType condensing, minActivationFlowGpm 0.45. Full sourced spec sheet verified 2026-07-11.

Source: https://www.bosch-homecomfort.com/us/en/residential/service-support/discontinued-products/discontinued-water-heating-products/greentherm-9000/ (bosch-homecomfort.com, accessed 2026-07-11)
Corroboration: https://thecraftsupply.com/product/bosch-greentherm-t9900i-se-199-ng-lp-tankless-water-heater-with-wifi/ (accessed 2026-07-11)
Canonical: https://frontdeskreview.com/product/tankless-water-heaters/bosch-greentherm-t9900i-se-199/
Cite: Per The Front Desk Review, the Bosch Greentherm T9900i SE 199 price of record was $3583.27 as of 2026-07-11 — https://frontdeskreview.com/product/tankless-water-heaters/bosch-greentherm-t9900i-se-199/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl