Model page, ducted single-zone
Bosch IDS Ultra
Bosch’s cold-heating ducted split — the first ducted unit in our guide, which changes the rebate math as much as the numbers: Maine and Vermont pay bigger ducted tiers than the ductless models earn. Its own specification sheet states 100% of heating capacity at 5F, and its heating range, like the LG and Daikin lines, stops at -13F.
The unit and the cold numbers
100%
Of rated heating capacity at 5F, per Bosch’s specification sheet — its performance table backs the claim to within rounding
-13F
The lowest temperature this unit is rated to heat at — Bosch publishes the floor, not a capacity figure there
IDS Ultra is Bosch’s Inverter Ducted Split — a condenser plus a ducted air handler, not a wall-mounted mini-split. Two condenser sizes carry the cold-climate rating: the 3-ton BOVB19-36 and the 5-ton BOVB19-60, each paired with Bosch’s BIVB air handler. Bosch’s submittal sheet states the unit is “capable of providing 100% heating capacity at 5F outdoor temperature”, and the product page adds a COP of 2.1 at that point and a pass of the U.S. Department of Energy’s Residential Cold Climate Heat Pump Challenge, tested at Oak Ridge National Laboratory.
100%
5F
A mild fall day — of rated heating capacity, per Bosch’s own specification sheet — and Bosch’s expanded performance table comes within rounding of the claim at every point it prints (98.9% at 7F, 96.7% at 2F, at a COP of about 2.1).
Runs
-13F
The worst nights of a northern winter — and this unit’s operating floor — Bosch confirms operation down to -13F but publishes no capacity percentage for that temperature — its table stops at -10F, where the unit keeps about 77% of rated capacity — so we print no number Bosch does not.
Source: Bosch, IDS Ultra cold climate heat pump engineering submittal sheet (PDF). Checked on October 9, 2026.
Two honesty notes. First, Bosch’s “100% at 5F” is a specification claim, not a table cell: the expanded performance table jumps from 7F to 2F and has no 5F column. The points it does print — 98.9% of rated capacity at 7F, 96.7% at 2F, both at a COP of about 2.1 — back the claim within rounding, so we print the claim and the table together. Second, the -13F floor: it is the same floor the LG RED and Daikin AURORA lines have, while the Mitsubishi H2i+ we checked keeps 70-81% of its capacity at -13F and the Fujitsu XLTH is rated to operate at -15F. On nights colder than -13F, those lines are still running and this one is not. We say it plainly because that comparison is what this guide exists for.
Source: Bosch, IDS Ultra product page — “100% heating capacity down to 5F at 2.1 COP”. Checked on October 9, 2026.
What the states pay for it
A rebate never attaches to a model name alone — it attaches to a unit on a program’s list, installed to the program’s rules. Because this unit is ducted, it lands in different tiers than the ductless models on our other pages. Here is every program we checked, what it pays, and honestly where this model’s qualification is confirmed and where it is not.
$3,000 to $9,000 for the whole system
Rebate program open; unit list status unverified
Maine — Efficiency Maine, ducted whole-home rebate
Because the IDS Ultra is ducted, it lands in Efficiency Maine’s bigger, flatter tier: $3,000 for the system at any income, $6,000 moderate income, $9,000 low income — with a $500 limited-time bonus on jobs completed through December 31, 2026. The conditions are stricter than the ductless tiers: the system must be sized to carry 100% of the home’s peak heating load, and in an existing home the old furnace or boiler comes out as part of the job. The equipment must also be on Efficiency Maine’s rebate-eligible list, which would not open when we checked — a spreadsheet our tools could not read — so confirmation rests on program rules, not the list itself.
The full Maine rules — income tiers, the ductless comparison and the December deadlines behind this money — are on our Maine rebate page.
A separate Efficiency Maine program pays $13,900 toward a ducted system for income-eligible owners of single-wide mobile homes — the homeowner pays $1,000 — with pre-approval required and claims by December 31, 2026.
Source: Efficiency Maine, residential ducted heat pump rebates. Checked on October 9, 2026.
$2,000 for gas and combo customers
Rebate program open; this unit’s listing on the required list is unverified
Minnesota — Xcel Energy, cold-climate ducted heat pump
Xcel’s ducted cold-climate rebate pays $2,000 for Combo or natural-gas customers ($1,500 electric-only) and requires 15.2 SEER2, 10.0 EER2 and 8.1 HSPF2 with a Quality Installation — plus, for a cold-climate unit, a heating COP of at least 1.75 at 5F and a spot on the NEEP cold-climate list. On paper the IDS Ultra clears comfortably: Bosch’s sheet shows 19.0 SEER2, 12.0 EER2 and 10.0 HSPF2 with the Bosch air handler, and its performance table works out to a COP of about 2.1 at 5F. What we could not confirm is the NEEP listing itself — the list is an interactive application that resisted our checks. So before you count this rebate, have your installer confirm your exact model is on the current NEEP list.
Source: Xcel Energy, Minnesota residential rebate summary (PDF). Checked on October 9, 2026.
$1,200 to $2,200 instant discount
Open at participating distributors; unit list status unverified
Vermont — Efficiency Vermont, centrally ducted heat pump
An instant discount at participating distributors: the money comes off the invoice before you pay, so there is no check and nothing to file — if your quote does not show the discount, ask why. The centrally ducted discount runs $1,200 to $2,200 depending on the outdoor and indoor unit pairing on the quote — a bigger base than the $375 to $475 the ductless models earn. Income bonuses of $200 (most utilities), $1,000 (VPPSA utilities) or $2,200 (Green Mountain Power, low income) can stack on top. Equipment must be on Efficiency Vermont’s qualifying list, which we could not search when we checked. That list decides the money, so before you sign, have your installer confirm your exact model number is on the current list.
The full Vermont rules — the income bonuses, Green Mountain Power’s separate rebate and Burlington’s own schedule — are on our Vermont rebate page.
In Burlington, this row undersells it: Burlington Electric pays its own centrally ducted schedule — an online rebate of $1,350, $3,950 or $5,450 depending on system size, plus a $500 qualifying-customer bonus — instead of Efficiency Vermont’s discount.
Source: Efficiency Vermont, centrally ducted heat pump discounts. Checked on October 9, 2026.
Could not be verified
Not yet verified by us
Its NEEP row
The NEEP cold-climate list standardizes capacity and COP at 5F for every listed unit — the fairest comparison between brands, and the list both Xcel cold-climate rebates in Minnesota require. The list is an interactive application that resisted our checks, and Bosch’s own documents claim no NEEP affiliation we could find; the closest marker is the DOE Cold Climate Challenge pass quoted above.
The state equipment lists
Efficiency Maine’s rebate-eligible spreadsheet and Efficiency Vermont’s qualifying-products list both resisted our checks on our date, so per-model confirmation rests on program rules, not the lists themselves. For Vermont, that confirmation is worth getting in writing before you sign.
A capacity figure at -13F
Bosch publishes the -13F operating floor and a table reaching -10F, but no percentage of capacity kept at -13F. We print only what we have read, so this page shows where the range stops — and the ~77% figure at -10F — rather than a number Bosch does not publish.
Source: NEEP, cold-climate air-source heat pump specification and product list. Checked on October 9, 2026.
Compare it against the other quote, with the same numbers for both
Checked on October 9, 2026. Built from the public record, not from opinion. Every model page gets the same structure, so the numbers compare.