Mild winters
A heat pump's efficiency falls as it gets colder outside. Here it rarely gets cold enough for that to matter, which removes the single strongest objection people bring to the conversation.
Heat pumps suit this climate better than almost anywhere in the country. The part nobody mentions until the quote arrives is whether your electrical service can take one.
The honest version Sometimes the answer is that a panel upgrade costs more than the heat pump. You should hear that on day one.
Most of the scepticism about heat pumps comes from cold-climate arguments that simply do not apply between the bay and the coast range.
A heat pump's efficiency falls as it gets colder outside. Here it rarely gets cold enough for that to matter, which removes the single strongest objection people bring to the conversation.
Cooling loads here are real but not extreme. That means one machine can genuinely cover both seasons instead of being a compromise in one of them.
A heat pump replaces the furnace and the air conditioner with a single machine, and removes a gas appliance and its flue from the building. Fewer things to service, fewer things to fail.
Electrification is an electrical project as much as a mechanical one. A heat pump wants a circuit, and it is joining a panel that may already be serving an EV charger, an induction range and a heat-pump water heater. That is the conversation this site is built around, and it is on the heat pump page.
An older Peninsula house often has a 100-amp service that was perfectly adequate when everything except the lights ran on gas. Electrification puts several large loads onto it in quick succession, frequently over a few years and by different contractors who never speak to each other.
The bars below are illustrative rather than a calculation for your house — a real assessment uses measured load rather than nameplate arithmetic — but the shape of the problem is exactly this.
This is the point at which a project either proceeds, or discovers it needs a service upgrade.
Heat pumps are the speciality. Everything else is the ordinary work of keeping Peninsula houses comfortable.
Ducted and ductless, with the panel assessed and the duct system tested before any equipment is specified.
Not cooling, short cycling, icing, tripping a breaker. Diagnosed on readings before a part is quoted.
Load calculated from the building, ducting assessed first, permit and Title 24 documentation handled.
Furnace service, heat-exchanger and combustion safety checks, and replacement where a gas appliance is staying.
Static pressure, leakage, return sizing and balancing. The step most often skipped, and the one that decides whether a heat pump performs.
An annual visit with the readings written down, so year two's numbers mean something beside year one's.
On an electrification project the assessment is the product. Everything after it is execution.
Room-by-room load from orientation, glazing, insulation and use. Not floor area, and not the old equipment's data plate.
Static pressure measured, return sizing checked, leakage assessed. A heat pump on a starved duct system will disappoint you.
Existing service size, what is already connected, and the measured load. If a service upgrade is needed you hear it here.
Options in writing, with running-cost arithmetic against your actual rate plan rather than a national average.
Electrification is a genuinely good idea in most Peninsula houses. It is not a good idea in all of them, and there are honest reasons to wait: a panel upgrade that costs more than the equipment, a duct system that needs replacing first, a furnace with eight good years left in it.
Nobody here earns commission on equipment, which is the only arrangement under which "not yet, and here is what to do first" can be a real recommendation.
We are on Marshall Street in downtown Redwood City, which puts San Carlos, Belmont, San Mateo, Menlo Park and Atherton inside fifteen minutes and the rest of the list inside thirty.
Comfortably. The mid-Peninsula almost never gets cold enough to trouble a modern heat pump, and the design condition here is nothing like the one those machines are criticised for in cold climates. The more common problem is the opposite: heat pumps sized for heating end up slightly oversized for our cooling season, which is one reason the load calculation matters.
Sometimes, and it is the single biggest hidden cost in an electrification project. A heat pump adds a circuit to a panel that may already be carrying an EV charger, an induction range or a heat-pump water heater. We assess the existing panel and the actual measured load before quoting, so if a service upgrade is needed you hear it at the beginning rather than halfway through.
It depends on your electricity rate plan and your gas rate, and anyone who gives you a confident yes without asking about either is guessing. A heat pump moves heat rather than making it, so it delivers several units of heat per unit of electricity — but electricity costs more per unit than gas in California. The arithmetic is worth doing properly, with your rate plan, before you decide.
Often, but it has to be tested rather than assumed. Heat pumps typically move more air at a lower temperature than the furnace they replace, so a duct system that was marginal before can become genuinely inadequate. We measure static pressure and check the return sizing before specifying equipment, because putting a good heat pump on a poor duct system produces a disappointed customer.
State, utility and regional programmes for heat pumps exist and they change frequently — amounts, eligibility and whether funds are still available all move. We prepare the documentation for whatever is live when your job runs, and we tell you plainly when nothing applicable is open rather than building a quote around a rebate that has closed.
Building, ducts, panel and numbers — before anybody talks about equipment.