# Heat Pump Installation in Rocklin, CA, with Lincoln, Loomis and Granite Bay

> Heat pump installation in Rocklin, Lincoln, Loomis and Granite Bay: sizing for a 103°F design day, PG&E and Pioneer rates, and Placer permits. Get an estimate.

URL: https://tulesacramentoheatpump.com/service-areas/rocklin/

Ducted heat pumps for Rocklin, Lincoln, Loomis and Granite Bay, sized for south Placer County's hotter design days and planned around PG&E delivery with Pioneer Community Energy generation.

## What brings Rocklin, Lincoln, Loomis and Granite Bay homeowners to a heat pump

A

### A summer design day five degrees hotter than Sacramento's

The Energy Commission lists 103°F at the 1% level for Rocklin against 98°F at Sacramento's airport, so the cooling load calculation, not the old unit's tonnage, sets the heat pump size.

B

### Moving from PG&E's default rate to E-ELEC

PG&E's E-ELEC plan is open to homes that heat and cool with an electric heat pump. Its winter off-peak price is about $0.28 per kWh, against about $0.37 on the default E-TOU-C plan.

C

### A 2000s house on its second system

Almost half of Rocklin's homes, 45.7%, were built in 2000 or later. Those houses are now replacing their first or second furnace and AC, which is the natural moment to switch to a heat pump.

D

### A Granite Bay parcel outside any city

Granite Bay is unincorporated Placer County, so the permit comes from the County rather than Rocklin or Roseville, and the address decides which office applies.

## Heat pump services in Rocklin, Lincoln, Loomis and Granite Bay

Furnace to heat pump conversion

One ducted heat pump in place of the gas furnace and the central AC, sized from a load calculation and tested to Title 24.

AC to heat pump

A heat pump in place of a failing central air conditioner, with the furnace kept as backup, removed, or replaced by the heat pump's own air handler.

Variable speed heat pump

An inverter-driven heat pump that runs at the output the house needs, sized and set up for Sacramento's heat and SMUD's rebate tiers.

Dual fuel heat pump

A heat pump added to a gas furnace that still has life in it, with the changeover point set from your utility's rates and the house's heat loss.

Heat pump replacement

An aging heat pump swapped for a matched, correctly sized system, with the ducts tested and the charge verified under Title 24.

Rocklin has the hottest summer design temperature the Energy Commission lists anywhere in the Sacramento metro: 103°F at the 1% level, five degrees above Sacramento’s airport. Pair that with PG&E electricity instead of SMUD, and the heat pump question here leans on cooling more than on winter heating savings. [Tule Sacramento Heat Pump](https://tulesacramentoheatpump.com/) plans and installs ducted heat pumps in Rocklin, Lincoln, Loomis and Granite Bay, with the work carried out by licensed and insured contractors.

## Sizing for a 103-degree design day

### What the design data says

The CEC’s Reference Appendices list Rocklin’s cooling design at 104°F at 0.5% and 103°F at 1%, with a heating design of 26°F at 0.2%. Loomis, higher up at 408 feet, lists 102°F and 27°F. Roseville next door lists 100°F and 30°F. Lincoln and Granite Bay have no station of their own, so their load calculations borrow the nearest listed one.

### Why the old unit’s tonnage is the wrong starting point

A hotter design day raises the cooling load, but it does not mean the replacement should simply be a size up. Title 24 limits heat pump capacity on alterations where airflow is not verified at 350 cfm per ton, and an oversized system short-cycles through the long shoulder seasons. A room-by-room load calculation, the duct test and the airflow readings set the size. The [heat pump sizing guide](https://tulesacramentoheatpump.com/guide/heat-pump-sizing/) walks through the method, and [heat pumps in hot weather](https://tulesacramentoheatpump.com/guide/heat-pump-hot-weather/) covers how capacity behaves above 100°F.

### Winter is colder, not harsh

A 26°F heating design is a few degrees colder than the valley floor, so the backup heat setting and defrost controls get checked rather than assumed. Damp, near-freezing mornings still mean frequent defrost cycles, and the outdoor unit is set where melt water drains away from the slab.

## PG&E delivery, Pioneer generation

The Energy Commission’s utility layers place Rocklin, Lincoln, Loomis and Granite Bay in PG&E’s electric territory, with Pioneer Community Energy as the generation provider. PG&E supplies the gas too. That combination changes the running-cost math compared with SMUD or Roseville Electric.

| Electric rate (PG&E bundled) | Winter off-peak | Winter peak | Break-even heating COP vs 95% gas furnace |
| --- | --- | --- | --- |
| E-ELEC (heat pump households) | $0.28468/kWh | $0.32063/kWh | about 3.1 to 3.5 |
| E-TOU-C (default) | $0.36757/kWh | $0.39757/kWh | about 4.0 off-peak |

The break-even figures are derived from PG&E’s gas and electric tariffs, energy charges only. A heat pump has to deliver about three units of heat per unit of electricity on E-ELEC just to match a condensing furnace on winter fuel cost. For a Pioneer customer the generation portion follows Pioneer’s own rates, so the totals are checked against a recent bill.

### What carries the case here

Because winter savings over gas are thin, most of the value comes from replacing the air conditioner with efficient cooling and retiring the furnace in one project. E-ELEC’s summer peak of $0.55214 per kWh from 4 to 9 p.m. rewards a [variable-speed heat pump](https://tulesacramentoheatpump.com/variable-speed-heat-pump/) that runs slowly through the evening, and pre-cooling before 4 p.m. The [electric bill guide](https://tulesacramentoheatpump.com/guide/heat-pump-electric-bill-sacramento/) compares the plans in more detail.

### Rebates outside SMUD territory

SMUD’s heat pump rebates stop at its service boundary. TECH Clean California took its last reservations in November 2025, the federal HEEHRA rebates are fully reserved in California, and no PG&E single-family heat pump rebate was found. Any Pioneer program is confirmed directly with Pioneer. The [California rebate guide](https://tulesacramentoheatpump.com/guide/california-heat-pump-rebates/) tracks what is open.

## Next door to Roseville Electric

Rocklin shares a long border with Roseville, and the two cities sit in the same Title 24 climate zone 11. The electric bill is where they part: Roseville Electric uses tiered pricing with no time-of-use schedule, while Rocklin households are on PG&E’s time-of-use plans. Near the line, the utility is confirmed from the meter, not the mailing address. The [Roseville page](https://tulesacramentoheatpump.com/service-areas/roseville/) covers that side.

## Lincoln

Lincoln is the newest housing stock in the area: Census data puts 78.1% of its homes as built in 2000 or later and 91.5% as single-family detached.

Where a house has its original 2000s furnace in the attic, a conversion usually means a new air handler or coil in the same spot, a new outdoor unit and the Title 24 duct test on ducts that may never have been retested. Lincoln is PG&E and Pioneer territory in climate zone 11, and its permit rules are confirmed per address and project.

## Loomis

Loomis sits higher than Rocklin and lists a 102°F cooling design at 1% with a 27°F heating design. The cooling load still governs the size. Loomis also gets PG&E delivery with Pioneer generation, and its permit path is confirmed per address and project.

## Granite Bay

Granite Bay is unincorporated Placer County, so the permit comes from the County. Census data shows 39.0% of its homes built before 1980, 91.9% single-family detached and 90.0% owner-occupied. Older Granite Bay houses can carry original ducts and smaller electrical services, which is where [ductwork](https://tulesacramentoheatpump.com/heat-pump-ductwork/) and the [panel guide](https://tulesacramentoheatpump.com/guide/heat-pump-electrical-panel/) come in.

## Permits across south Placer County

The City of Rocklin issues permits inside city limits and Placer County issues them in Granite Bay. Each office’s HVAC permit specifics are confirmed per address and project. The state layer is the same everywhere: the CEC says installing a space-conditioning appliance requires a building permit, and a heat pump change-out triggers duct sealing and testing plus refrigerant charge verification by an ECC-Rater. Climate zone 11 changes the design data and the CF1R paperwork more than the alteration checklist. The [permit and Title 24 guide](https://tulesacramentoheatpump.com/guide/heat-pump-permit-title-24/) explains each step.

## The order of a south Placer project

- **Utility check.** Confirm PG&E delivery, Pioneer generation and the current rate plan from a recent bill.
- **Load and ducts.** A load calculation at the local design temperature, a duct inspection and static pressure readings.
- **Panel.** The service size and open breaker spaces, before any backup heat is chosen.
- **Scope and permit.** An itemized written scope, then the City or County permit.
- **Install and verify.** The old refrigerant recovered, the new system set, line sets brazed, held under pressure and pulled into a deep vacuum before charging, then airflow and charge readings ahead of the ECC-Rater’s visit.

For a house with a gas furnace and AC, the starting point is a [gas furnace to heat pump conversion](https://tulesacramentoheatpump.com/gas-furnace-to-heat-pump-conversion/). Where the furnace still has years left, a [dual fuel heat pump](https://tulesacramentoheatpump.com/dual-fuel-heat-pump/) is worth comparing on PG&E rates. The [Sacramento cost guide](https://tulesacramentoheatpump.com/guide/heat-pump-installation-cost-sacramento/) shows what moves the price.

Plan a heat pump for a south Placer address

Send the street, your PG&E rate plan and the age of the system. Sizing starts from the local design temperature.

## Neighborhoods, landmarks and routes

- Whitney Ranch
- Stanford Ranch
- Sunset Whitney
- Clover Valley
- Lincoln
- Loomis
- Granite Bay

### Landmarks

- Quarry Park
- Sierra College
- Johnson-Springview Park

### Main routes

- I-80
- SR-65
- Sunset Blvd
- Pacific St

1. 1. Carmichael, Fair Oaks and Arden-Arcade
2. 2. Citrus Heights
3. 3. Davis and Woodland
4. 4. El Dorado Hills
5. 5. Elk Grove
6. 6. Folsom
7. 7. Land Park, Curtis Park and East Sacramento
8. 8. Rocklin, Lincoln, Loomis and Granite Bay
9. 9. Roseville
10. 10. West Sacramento

Planning a heat pump in Rocklin, Lincoln, Loomis and Granite Bay?

Call with your current system, the rooms that bother you and your ZIP code.

## Rocklin, Lincoln, Loomis and Granite Bay questions

### What does a gas-to-heat-pump conversion cost in Rocklin, with no SMUD rebate to subtract?

The Sacramento-area range applies: replacing a gas furnace and central AC with a ducted heat pump typically runs about $15,000 to $24,000 before incentives, with typical jobs near $18,000 to $19,000. Larger systems cost more, which matters where a hotter design day raises the tonnage. Rocklin is PG&E territory, so SMUD's rebate does not apply, and no PG&E single-family heat pump rebate was found.

### Does a Rocklin house need a bigger heat pump than the same house in Sacramento?

It can. The Energy Commission's design data lists 103°F at the 1% level for Rocklin and 98°F for Sacramento's airport, so the cooling load for an identical house comes out higher. The load calculation decides by how much. Insulation, windows, orientation and duct losses still move the result more than the five-degree gap alone.

### Is PG&E's E-ELEC rate worth switching to after a heat pump goes in?

Often worth a look. E-ELEC is open to households whose primary heating and cooling is an electric heat pump. In winter its off-peak price is about $0.28 per kWh, compared with about $0.37 on PG&E's default E-TOU-C plan. Summer peak hours, 4 to 9 p.m., cost more on E-ELEC, so the answer depends on when the house uses power.

### Who permits a heat pump in Granite Bay?

Granite Bay is an unincorporated community, so heating and cooling permits come from Placer County rather than the City of Rocklin or the City of Roseville. The County's specific HVAC rules are confirmed per address and project. The state Title 24 steps, including the ECC-Rater's duct leakage and refrigerant charge checks, apply in Granite Bay just as in the cities.

### Does Pioneer Community Energy change what a heat pump costs to run?

It changes who sets the generation part of the bill. In Rocklin, Lincoln, Loomis and Granite Bay, PG&E delivers the power and Pioneer Community Energy supplies the generation. PG&E's published E-ELEC prices are bundled rates, so a Pioneer customer's totals follow Pioneer's own generation rates and are best checked against a recent bill.

## Related guides

- Learn [How is a heat pump sized for a Sacramento home?](https://tulesacramentoheatpump.com/guide/heat-pump-sizing/)How a load calculation turns your house, your town's design temperatures and your ducts into a capacity, why the old condenser's tonnage is a poor guide, and what Title 24 and the City permit allow.
- Learn [How does a heat pump hold up in Sacramento's hot weather?](https://tulesacramentoheatpump.com/guide/heat-pump-hot-weather/)What happens inside a heat pump on a 100-degree afternoon, how the design temperature for your town sets its size, why attic ducts and outdoor-unit placement matter, and how to run it around summer peak pricing.
- Learn [How much will a heat pump add to your electric bill in Sacramento?](https://tulesacramentoheatpump.com/guide/heat-pump-electric-bill-sacramento/)How heating moves from the gas bill to the electric bill, what a therm of heat costs under each local rate plan, how summer peaks and fixed charges work, and the settings that keep a heat pump's bill from creeping up.
- Learn [What does a heat pump permit in Sacramento involve, and what does Title 24 check?](https://tulesacramentoheatpump.com/guide/heat-pump-permit-title-24/)The permit office for each part of the region, what the City of Sacramento's standard change-out permit allows, every Title 24 test a change-out carries, and how SB 222 reshapes permits from 2027.
- Cost Guide [How much does heat pump installation cost in Sacramento?](https://tulesacramentoheatpump.com/guide/heat-pump-installation-cost-sacramento/)Typical Sacramento-area ranges for ducted heat pump jobs, the public figures inside a price, permit fees by jurisdiction, the parts only a site visit can price, and which incentives are still open.

## Nearby service areas

- [Roseville](https://tulesacramentoheatpump.com/service-areas/roseville/)No SMUD rebate on a Roseville Electric address
- [Citrus Heights](https://tulesacramentoheatpump.com/service-areas/citrus-heights/)A house that already heats with electricity
- [Folsom](https://tulesacramentoheatpump.com/service-areas/folsom/)A SMUD address a few miles from PG&E territory