Umami is an exceptionally well-equipped 2025 Hallberg-Rassy 340, offered for sale by her original owner. She was ordered new from Hallberg-Rassy and built to his demanding specifications with virtually every available factory option. Not content with an already extensive factory specification, her owner went further after delivery, adding additional lithium battery capacity, a high-output alternator, watermaker and other upgrades to create a remarkably capable and self-sufficient 34-foot cruising yacht.
Her electrical and energy systems are a particular highlight. Umami carries a substantial 920Ah Mastervolt lithium service bank supported by approximately 200 watts of solar generation and an ARCO Zeus 220-amp high-output alternator. A Mastervolt 3,000-watt inverter/charger supplies AC power aboard and the system has sufficient capacity to operate the Dometic air conditioning overnight from the batteries without running a generator. Combined with her Spectra Ventura watermaker, this gives Umami an unusual degree of independence from shore power and marina facilities for a yacht of her size.
The cruising specification continues with Dometic air conditioning serving the saloon and forward cabin, Webasto diesel heating, a retractable 6 hp bow thruster, water-cooled refrigeration and a well-equipped galley. Below deck she has Hallberg-Rassy's two-cabin, one-head arrangement finished in European oak, with double berths forward and aft, a separate shower area and additional sleeping accommodations available in the saloon.
Sail handling was specified for easy operation from the cockpit, with Seldén in-mast furling, electric Seldén Furlex headsail furling, upgraded Lewmar winches and a Code Zero with complete handling equipment. Most of the running rigging was renewed in 2026, and Hallberg-Rassy completed a factory rig inspection the same year.
Her navigation package is equally comprehensive, centered around twin Raymarine Axiom Pro 9 multifunction displays with Quantum 2 Doppler radar, Raymarine autopilot, multiple i70s instruments, AIS700 Class B AIS and Ray73 VHF. Twin steering wheels, twin rudders, Hallberg-Rassy's permanent windscreen, sprayhood, teak cockpit and fold-out bathing platform complete the deck and cockpit arrangement.
Umami is powered by a Volvo Penta D1-30 29 hp diesel with saildrive and folding bronze propeller. The engine has been Volvo dealer serviced with full service history and received a new raw-water pump in 2026.
Importantly, Umami has continued to receive Hallberg-Rassy factory after-sales attention since delivery rather than simply leaving the factory and disappearing into private ownership. Her specification reflects an owner who knew what he wanted when the boat was built and continued improving her afterward.
Accommodation
The Hallberg-Rassy 340 has a two-cabin, one-head layout. The forward cabin has a double berth, and the aft cabin has a double berth. The main saloon has settees to port and starboard with a central dining table. The galley is located aft in the saloon to starboard. The navigatoins station is also aft in the salon to port. There is an enclosed head and separate shower area at the froward end of the salon to port.
Interior Comforts and Amenities
Saloon & Interior
- European oak interior joinery
- High-gloss varnished companionway washboards
- Teak-and-holly style interior flooring
- Medium grey carpeting
- Grey Tathra 31 upholstery
- Saloon with port and starboard settees
- Saloon table
- Lockers, bookshelves and storage beneath saloon seating
- Port saloon settee lee cloth
- Starboard saloon settee lee cloth
- Custom fitted sheets for both saloon settees
- Top mattress for port saloon settee
- Ocean Air Skyscreen in saloon
- Blackout package including Skyscreen forward of mast
- Wempe Bremen II chrome clock
- Wempe Bremen II chrome barometer
- Extra opening Lewmar portlight to cockpit
- Shade for extra opening Lewmar cockpit portlight
Navigation Area
- Navigation/chart table with storage
- Wooden trim strips around exterior of chart table
Galley
- Galley with composite stone work surface
- Double stainless-steel galley sinks
- Removable covers for galley sinks
- Cooker with oven
- Removable cover over stove
- Galley drawers, waste bin and storage
- Air fryer – runs on inverter
- Dometic portable freezer – 120V, runs on inverter
Forward Cabin
- Forward cabin with large double berth
- Sprung mattress in forward cabin
- Additional top mattress in forward cabin
- Custom fitted sheet for forward berth
- Lockers above forward berth
- (2) large hanging lockers in forward cabin
- Storage beneath forward berth
- Additional doors, floors and dividers beneath forward berth
Aft Cabin
- Aft cabin with double berth
- Sprung mattress in aft cabin
- Custom fitted sheet for aft berth
- Hanging locker in aft cabin
- Lockers above and storage beneath aft berth
Head & Shower
- Heads compartment with separate watertight shower area
- Teak shower grating
- Composite stone wash basin and countertop
- Single-lever shower mixer
- Storage above and below wash basin
- Large head mirror
- Removable pole in head for hanging foul-weather clothi
Deck and Hull Equipment
Hull & Construction
- White gelcoat hull
- Hallberg-Rassy blue decorative hull band
- Hand-laid hull construction
- Isophthalic gelcoat
- Vinylester-based barrier coat
- Polyester laminate
- Hull insulation against heat and cold
- Integrated rubbing strake
- Deep bilge
- Reinforced structural floors
- Bolt-on lead keel
- Normal-draft keel
- Stainless-steel keel bolts
- Sandwich-construction deck, coachroof and cockpit
- Deck structure laminated to hull
Deck & Exterior Finish
- PU synthetic teak side decks
- Teak toerails
- Teak handrails
- Teak cockpit seats
- Teak cockpit floor
- Stainless-steel protective strips at rubbing strake, mooring cleats and spring cleats
- (4) flush-mounted opening deck hatches
- Opening portlights
- Deck light
- Deck scuppers
- Flagstaff
Cockpit & Steering
- Twin leather-covered steering wheels
- Twin rudders
- Stainless-steel rudder stocks
- Self-aligning rudder bearings
- Permanent windscreen with handholds
- Opening center windscreen section
- Sprayhood
- Wood cockpit table with fittings for dedicated storage
- Cockpit cushions
- Wheel/instrument-box covers
- (4) folding lifebelt attachment fittings in cockpit
Swim Platform & Boarding
- Port and starboard entry gates
- Fold-out manual bathing platform
- Upgraded bathing ladder as fitted to HR44
- Bathing-platform shower
Anchoring Equipment
- Lewmar electric anchor windlass
- 16 kg Ultra anchor
- 40 m / approximately 131 ft anchor chain
- Custom anchor snubber with Dyneema soft shackle
- Additional 30 m three-strand nylon anchor rode
- Lewmar chain counter
- Fixed anchor-windlass remote control in cockpit
- Forward chain locker
- 15 L/min seawater deck-wash pump
- No secondary anchor
- Mushroom dinghy anchor
Mooring & Deck Hardware
- Stainless-steel bow pulpit
- Stainless-steel stern pushpit
- Stainless-steel lifelines
- Stainless-steel bow and stern mooring cleats
- Spring cleats
- Integrated bowsprit
- Boathook with dedicated deck holder
- Outboard motor bracket on pushpit
- (2) ball fenders
- (8) regular fenders
- Docklines
Canvas & Covers
- Custom boom tent (new 2026)
LPG Storage
- (2) 3 kg Campingaz LPG bottles
Lifesaving Equipment
- Plastimo
Sails and Rigging
Rig
- Seldén fractional rig
- Double-spreader mast
- Seldén in-mast furling mainsail system
- In-mast furling controlled from cockpit
- Electric Seldén Furlex TDE headsail furling system
- Seldén Rodkicker rigid boom vang
- Adjustable backstay system
- Integrated bowsprit for Code Zero/asymmetric sail use
- Windex masthead wind indicator
- Mast-mounted deck light
- Hallberg-Rassy factory rig inspection (2026)
Sails
- Dacron furling mainsail
- Dacron furling genoa/jib
- Heavy-duty grey UV protection on genoa
- E-Flex for genoa/jib
- Code Zero
- Complete Code Zero equipment
- Spinnaker equipment, excluding spinnaker pole
Running Rigging & Sail Handling
- Most running rigging (new 2026)
- Running rigging led aft to cockpit
- Rope clutches/jammers
- Genoa tracks and cars
- Mainsheet track and car
Winches
- Lewmar 45ST genoa sheet winches in lieu of standard
- Lewmar 30ST halyard winches in lieu of standard
Mechanical Equipment
HVAC & Ventilation
- Dometic 110V, 50/60Hz air-conditioning system serving saloon and forward cabin
- Webasto Air Top EVO 40 diesel cabin heating system
- Four 12V cabin fans plus one additional 12V fan
Refrigeration
- Water-cooled refrigeration system
Freshwater & Plumbing
- Pressurized freshwater system
- Hot and cold pressurized water
- Insulated water heater
- Electric shower waste pump
- Freshwater shower at bathing platform
- 15 L/min 12V seawater deck-wash pump
Head & Waste System
- 12V electric marine toilet
- Saltwater toilet flush
- Gobius holding-tank monitor
Bilge Systems
- Electric bilge pump
- Manual/emergency bilge pumping system
Bow Thruster
- Retractable 6 hp bow thruster
LPG System
- Electric LPG shutoff and gas alarm
Other Equipment
- TV elevator mechanism
- Abundant spare parts
Safety Equipment
- USCG safety package
- Fire Extinguishers (number and type)
- Emergency Tiller
- CE Category A – Ocean certification
- Stainless-steel bow pulpit and stern pushpit
- Stainless-steel lifelines
- Port and starboard boarding gates
- Four folding cockpit lifebelt attachment fittings
- Lifebuoy with holder
- EcoMax 230 radar reflector
- Raymarine AIS700 Class B AIS transponder
- Raymarine Ray73 DSC VHF
- Aqua Signal LED masthead tricolor navigation light
- International LED navigation lights
- Electric bilge pump
- Manual/emergency bilge pump
- Electric LPG shutoff
- LPG alarm
- Companionway washboards lockable from inside
- (2) fire extinguishers
- Emergency engine-start switch
Engine Info
Engine
- Volvo Penta D1-30 marine diesel engine
- 3-cylinder diesel
- 21 kW / 29 hp
- Freshwater cooled
- Engine hours: 1,700 as of August 25, 2026
- Sound-insulated engine compartment
Drive & Propeller
- Saildrive
- (2)-blade folding bronze propeller
Service & Maintenance
- Volvo dealer serviced with full service history
- Raw-water pump (new 2026)
Engine Electrical & Instrumentation
- Dedicated engine-start battery
- Engine-driven alternator
- Emergency engine-start switch
- Engine tachometer
- Engine-hour meter
Owners Comments and Boat History
There is a kind of sailor who only ever really wants one boat, and I am one of them. Buying a Hallberg-Rassy new from the yard was an ambition I carried for years before I could act on it, and ordering Umami in June 2024 remains one of the achievements of my life.
I specified her myself. I went down the options list line by line and took nearly all of it - the large lithium package, in-mast furling with electric Furlex, Code Zero and bowsprit, the retractable bow thruster, Dometic air conditioning, Webasto heat, twin Axiom Pro 9 displays with Quantum 2 radar. I was not building a boat to keep in a slip and admire. I was building the boat I was going to live on, and every choice I made was made with that in mind.
I flew to Sweden with my father for the handover. Standing in the yard beside him the day they gave her to us is a day I will carry for the rest of my life. We sailed her down to Eemshaven with Halcyon Yachts aboard, she crossed with Sevenstar, and I collected her in Fort Lauderdale and turned south - through the Bahamas and on to the Virgin Islands.
She has been home ever since. My girlfriend and I live aboard full time. Umami is our house and our adventure, my office, and the place I go when I need to be quiet. You come to know a boat completely when you live on her - every sound she makes, everything she asks for.
Living aboard in the tropics asks more of a boat's systems than any options list can anticipate, so I kept going after delivery. I increased the lithium bank to 920Ah, fitted a 220-amp ARCO Zeus alternator, and added a Spectra Ventura watermaker - all of it done professionally by B&G in Tortola and later JSM Marine Services. In 2026 I added solar. She runs her air conditioning overnight on the batteries and makes her own water, which means we anchor where we like, for as long as we like, and answer to nobody's dock.
I have looked after her the way you look after something you love. Roughly 1,700 engine hours as of August 2026, every one of them Volvo dealer serviced, with complete records from the day she left the factory. Most of the running rigging renewed in 2026. A Hallberg-Rassy factory rig inspection the same year, along with other warranty work carried out by the yard. A new raw-water pump, a custom boom tent, a liferaft new in 2025. She is fully loaded, thoughtfully upgraded, and there is nothing on my list left undone.
We are selling for one reason: we are moving up to a larger yacht. That is the whole of it. Letting her go is not easy and I will not pretend otherwise - she has given us two years I would not trade for anything. What I want for her now is an owner who will do what we did with her: take her somewhere, live on her, use her properly. She is ready for it. She is lying at Nanny Cay, Tortola
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